diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..37c6555
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,19 @@
+__pycache__
+*.py[cod]
+*.so
+*.o
+*.mod
+*.bak
+*.target
+htmlcov
+package/
+src/msspec/results.txt
+*venv/
+**/*build*/
+**/*dist/
+**/*.egg-info/
+.ropeproject
+.project
+VERSION
+tests/private
+**/man/pages
diff --git a/New_libraries/Makefile b/New_libraries/Makefile
deleted file mode 100644
index 79a5250..0000000
--- a/New_libraries/Makefile
+++ /dev/null
@@ -1,243 +0,0 @@
-#
-#  Makefile for the MsSpec-DFM epsilon.f90 program
-#
-#         by S. Tricot and D. Sébilleau
-#
-#                                Last version: 21 Apr 2021
-#
-#  Compiler
-#
-FC=gfortran
-#
-#  Compile flags
-#
-#FFLAGS=
-FFLAGS=-g -fbounds-check -fbacktrace -ffpe-trap=zero,overflow,underflow,invalid,denormal
-#FFLAGS=-ffast-math -O3
-#
-#  Link flags
-#
-LDFLAGS=
-LDLIBS=
-#
-#  Executable name
-#
-EXE=eps
-#
-#  Building directory
-#
-BUILDDIR:=build2
-
-.PHONY: clean
-
-cmn_DEPS:=DFM_library/ACCURACY_LIBRARY/accuracy.f90 \
-           DFM_library/INPUT_OUTPUT_LIBRARY/input_values.f90 \
-           DFM_library/DIMENSIONS_LIBRARY/dimensions.f90 \
-		   DFM_library/UTILITIES_LIBRARY/simple_numbers.f90 \
-		   DFM_library/UTILITIES_LIBRARY/powers_of_ten.f90 \
-		   DFM_library/UTILITIES_LIBRARY/mathematical_constants.f90 \
-		   DFM_library/UTILITIES_LIBRARY/physical_constants.f90 \
-		   DFM_library/UTILITIES_LIBRARY/factorials.f90 \
-		   DFM_library/ERROR_HANDLING_LIBRARY/error_caltech.f90 \
-		DFM_library/PRINT_LIBRARY/printfiles.f90 \
-		DFM_library/STRUCTURE_FACTOR_LIBRARY/utic_values.f90 \
-		DFM_library/DAMPING_LIBRARY/external_damping.f90 \
-		DFM_library/PHYSICAL_PROPERTIES_LIBRARY/Fermi_values.f90
-cmn_OBJS:=$(patsubst %.f90,%.o, $(cmn_DEPS))
-
-tool_SRCS:=$(cmn_DEPS) \
-		DFM_library/VARIOUS_FUNCTIONS_LIBRARY/external_functions.f90 \
-		DFM_library/VARIOUS_FUNCTIONS_LIBRARY/Lindhard_function.f90 \
-		DFM_library/VARIOUS_FUNCTIONS_LIBRARY/gamma.f90 \
-		DFM_library/VARIOUS_FUNCTIONS_LIBRARY/digamma.f90 \
-		DFM_library/VARIOUS_FUNCTIONS_LIBRARY/2F1_real.f90 \
-		DFM_library/VARIOUS_FUNCTIONS_LIBRARY/mod_mlf_garrappa.f90 \
-		DFM_library/UTILITIES_LIBRARY/derivation.f90 \
-		DFM_library/UTILITIES_LIBRARY/smoothing.f90 \
-		DFM_library/UTILITIES_LIBRARY/interpolation.f90 \
-		DFM_library/UTILITIES_LIBRARY/integration.f90 \
-		DFM_library/UTILITIES_LIBRARY/integration4.f90 \
-		DFM_library/UTILITIES_LIBRARY/transforms.f90 \
-		DFM_library/VARIOUS_FUNCTIONS_LIBRARY/basic_functions.f90 \
-		DFM_library/VARIOUS_FUNCTIONS_LIBRARY/bessel.f90
-util_SRCS:=$(cmn_DEPS) \
-		DFM_library/UTILITIES_LIBRARY/utilities_1.f90 \
-		DFM_library/SPECIFIC_INTEGRALS_LIBRARY/specific_int_1.f90 \
-		DFM_library/SPECIFIC_INTEGRALS_LIBRARY/specific_int_4.f90 \
-		DFM_library/SPECIFIC_INTEGRALS_LIBRARY/specific_int_6.f90 \
-		DFM_library/SPECIFIC_INTEGRALS_LIBRARY/specific_int_7.f90 \
-		DFM_library/SPECIFIC_INTEGRALS_LIBRARY/specific_int_8.f90 \
-		DFM_library/SPECIFIC_INTEGRALS_LIBRARY/specific_int_9.f90 \
-		DFM_library/UTILITIES_LIBRARY/find_zero.f90 \
-		DFM_library/UTILITIES_LIBRARY/polynomial_equations.f90
-prop_SRCS:=$(cmn_DEPS) \
-		DFM_library/PHYSICAL_PROPERTIES_LIBRARY/calc_Fermi.f90 \
-		DFM_library/PLASMON_LIBRARY/plasmon_ene.f90 \
-		DFM_library/SCALE_PARAMETERS_LIBRARY/scale_parameters.f90 \
-		DFM_library/ENERGIES_LIBRARY/correlation_energies.f90 \
-		DFM_library/ENERGIES_LIBRARY/delta_t.f90 \
-		DFM_library/PHYSICAL_PROPERTIES_LIBRARY/thermodynamic_properties.f90 \
-		DFM_library/SCREENING_LIBRARY/screening_vec1.f90 \
-		DFM_library/CONFINEMENT_LIBRARY/confinement_ff.f90 \
-		DFM_library/CONFINEMENT_LIBRARY/coulomb.f90 \
-		DFM_library/UTILITIES_LIBRARY/utilities_3.f90 \
-		DFM_library/PHYSICAL_PROPERTIES_LIBRARY/material_properties.f90 \
-		DFM_library/THERMAL_PROPERTIES_LIBRARY/thermal_properties.f90 \
-		DFM_library/ENERGIES_LIBRARY/xc_energies.f90 \
-		DFM_library/ENERGIES_LIBRARY/exchange_energies.f90 \
-		DFM_library/ENERGIES_LIBRARY/kinetic_energies.f90 \
-		DFM_library/PHYSICAL_PROPERTIES_LIBRARY/thermodynamic_quantities.f90 \
-		DFM_library/THERMAL_PROPERTIES_LIBRARY/chemical_potential.f90 \
-		DFM_library/UTILITIES_LIBRARY/utilities_4.f90 \
-		DFM_library/PHYSICAL_PROPERTIES_LIBRARY/calc_energies.f90
-#
-#  Read input data file:
-#
-read_SRCS:=DFM_library/INPUT_OUTPUT_LIBRARY/read_data.f90
-read_OBJS:=$(patsubst %.f90,%.o, $(tool_SRCS) $(util_SRCS) $(prop_SRCS) $(read_SRCS))
-
-io_SRCS:=DFM_library/INPUT_OUTPUT_LIBRARY/filenames.f90 \
-		DFM_library/INPUT_OUTPUT_LIBRARY/outfiles.f90 \
-		DFM_library/INPUT_OUTPUT_LIBRARY/change_filenames.f90 \
-		DFM_library/INPUT_OUTPUT_LIBRARY/store_coef.f90 \
-		DFM_library/INPUT_OUTPUT_LIBRARY/open_files.f90 \
-		DFM_library/PRINT_LIBRARY/print_headers.f90 \
-		DFM_library/PRINT_LIBRARY/print_calc_type.f90 \
-		DFM_library/PRINT_LIBRARY/print_Fermi.f90 \
-		DFM_library/PRINT_LIBRARY/print_plasmons.f90 \
-		DFM_library/PRINT_LIBRARY/print_scale_param.f90 \
-		DFM_library/PRINT_LIBRARY/print_material_lengths.f90 \
-		DFM_library/PRINT_LIBRARY/print_thermal.f90 \
-		DFM_library/PRINT_LIBRARY/print_thermodynamics.f90 \
-		DFM_library/PRINT_LIBRARY/print_energies.f90 \
-		DFM_library/INPUT_OUTPUT_LIBRARY/close_files.f90
-io_OBJS:=$(patsubst %.f90,%.o, $(io_SRCS))
-
-calc_DEPS:=$(cmn_DEPS) \
-		DFM_library/DIELECTRIC_FUNCTIONS_LIBRARY/dfuncl_static.f90 \
-		DFM_library/ASYMPTOTIC_VALUES_LIBRARY/gr_asymptotic.f90 \
-		DFM_library/ASYMPTOTIC_VALUES_LIBRARY/sq_asymptotic.f90 \
-		DFM_library/CONFINEMENT_LIBRARY/confinement_wf.f90 \
-		DFM_library/LOCAL_FIELD_LIBRARY/iq_functions_1.f90 \
-		DFM_library/MOMENTS_LIBRARY/loss_moments.f90 \
-		DFM_library/PAIR_DISTRIBUTION_FUNCTION/pair_distribution.f90 \
-		DFM_library/PAIR_CORRELATION_LIBRARY/pair_correlation.f90 \
-		DFM_library/STRUCTURE_FACTOR_LIBRARY/structure_factor_static.f90 \
-		DFM_library/LOCAL_FIELD_LIBRARY/iq_functions_2.f90 \
-		DFM_library/SPECIFIC_INTEGRALS_LIBRARY/specific_int_2.f90 \
-		DFM_library/ASYMPTOTIC_VALUES_LIBRARY/gamma_asymptotic.f90 \
-		DFM_library/ASYMPTOTIC_VALUES_LIBRARY/calc_asymptotic.f90 \
-		DFM_library/LOCAL_FIELD_LIBRARY/local_field_static.f90 \
-		DFM_library/LOCAL_FIELD_LIBRARY/local_field_static_2.f90 \
-		DFM_library/STRUCTURE_FACTOR_LIBRARY/structure_factor_static_2.f90 \
-		DFM_library/NEVANLINNA_FUNCTIONS_LIBRARY/Nevanlinna_functions.f90 \
-		DFM_library/MEMORY_FUNCTIONS_LIBRARY/memory_functions.f90 \
-		DFM_library/SCREENING_LIBRARY/screening_vec2.f90 \
-		DFM_library/UTILITIES_LIBRARY/velocities.f90 \
-		DFM_library/SCALE_PARAMETERS_LIBRARY/scale_parameters.f90 \
-		DFM_library/MOMENTS_LIBRARY/moments.f90 \
-		DFM_library/SPECIFIC_INTEGRALS_LIBRARY/specific_int_3.f90 \
-		DFM_library/SPECIFIC_INTEGRALS_LIBRARY/specific_int_10.f90 \
-		DFM_library/VARIOUS_FUNCTIONS_LIBRARY/coulomb_log.f90 \
-		DFM_library/DAMPING_LIBRARY/packing_fraction.f90 \
-		DFM_library/DAMPING_LIBRARY/classical_fluid.f90 \
-		DFM_library/DAMPING_LIBRARY/diffusion_coefficient.f90 \
-		DFM_library/DAMPING_LIBRARY/electron_phonon_int.f90 \
-		DFM_library/DAMPING_LIBRARY/scattering_length.f90 \
-		DFM_library/DAMPING_LIBRARY/lifetime.f90 \
-		DFM_library/DAMPING_LIBRARY/viscosity.f90 \
-		DFM_library/DAMPING_LIBRARY/relaxation_time_static.f90 \
-		DFM_library/UTILITIES_LIBRARY/utic_parameters.f90 \
-		DFM_library/DAMPING_LIBRARY/decay_rate.f90 \
-		DFM_library/DAMPING_LIBRARY/calc_damping.f90 \
-		DFM_library/DAMPING_LIBRARY/diffusion_coefficient_2.f90 \
-		DFM_library/PLASMON_LIBRARY/plasmon_dispersion.f90 \
-		DFM_library/PLASMON_LIBRARY/q_bounds.f90 \
-		DFM_library/DAMPING_LIBRARY/plasmon_damping.f90 \
-		DFM_library/PHYSICAL_PROPERTIES_LIBRARY/calc_energies.f90 \
-		DFM_library/PHYSICAL_PROPERTIES_LIBRARY/grand_partition.f90 \
-		DFM_library/UTILITIES_LIBRARY/utilities_2.f90 \
-		DFM_library/LANDAU_PARAMETERS_LIBRARY/landau.f90 \
-		DFM_library/VARIOUS_FUNCTIONS_LIBRARY/phi_function.f90 \
-		DFM_library/DIELECTRIC_FUNCTIONS_LIBRARY/dfuncl_stan_dynamic.f90 \
-		DFM_library/DIELECTRIC_FUNCTIONS_LIBRARY/dfuncl_magn_dynamic.f90 \
-		DFM_library/DIELECTRIC_FUNCTIONS_LIBRARY/dfunct_dynamic.f90 \
-		DFM_library/STRUCTURE_FACTOR_LIBRARY/structure_factor_dynamic_2.f90 \
-		DFM_library/INTERACTION_POTENTIALS_LIBRARY/interaction_potentials_r.f90 \
-		DFM_library/INTERACTION_POTENTIALS_LIBRARY/interaction_potentials_k.f90 \
-		DFM_library/DAMPING_LIBRARY/decay_rate.f90 \
-		DFM_library/STRUCTURE_FACTOR_LIBRARY/structure_factor_dynamic.f90 \
-		DFM_library/DIELECTRIC_FUNCTIONS_LIBRARY/dfuncl_stan_dynamic_2.f90 \
-		DFM_library/DAMPING_LIBRARY/mean_free_path.f90 \
-		DFM_library/SPECTRAL_FUNCTION_LIBRARY/spectral_function.f90 \
-		DFM_library/LOCAL_FIELD_LIBRARY/local_field_dynamic.f90 \
-		DFM_library/PRINT_LIBRARY/print_asymptotic.f90 \
-		DFM_library/POST_PROCESSING_LIBRARY/re_eps_0_treatment.f90 \
-		DFM_library/MOMENTS_LIBRARY/moments_loss.f90 \
-		DFM_library/SPECIFIC_INTEGRALS_LIBRARY/specific_int_5.f90
-#
-#  Calculators:
-#
-calc_SRCS:=DFM_library/CALCULATORS_LIBRARY/calculators_1.f90 \
-		DFM_library/CALCULATORS_LIBRARY/calculators_2.f90 \
-		DFM_library/CALCULATORS_LIBRARY/calculators_3.f90 \
-		DFM_library/CALCULATORS_LIBRARY/calculators_5.f90 \
-		DFM_library/CALCULATORS_LIBRARY/calculators_7.f90 \
-		DFM_library/CALCULATORS_LIBRARY/calculators_8.f90 \
-		DFM_library/CALCULATORS_LIBRARY/calculators_9.f90 \
-		DFM_library/CALCULATORS_LIBRARY/call_calc_1.f90 \
-		DFM_library/CALCULATORS_LIBRARY/call_calc_2.f90 \
-		DFM_library/CALCULATORS_LIBRARY/call_calc_3.f90 \
-		DFM_library/CALCULATORS_LIBRARY/call_calc_5.f90 \
-		DFM_library/CALCULATORS_LIBRARY/call_calc_7.f90 \
-		DFM_library/CALCULATORS_LIBRARY/call_calc_8.f90 \
-		DFM_library/CALCULATORS_LIBRARY/call_calc_9.f90
-#
-#  Test_integrals:
-#
-calc_TEST:=DFM_library/TEST_LIBRARY/test_integrals_2.f90 \
-		DFM_library/TEST_LIBRARY/test_integrals_3.f90 \
-		DFM_library/TEST_LIBRARY/test_integrals_8.f90 \
-		DFM_library/TEST_LIBRARY/test_int_Hubbard.f90
-#
-#  Post-processing:
-#
-calc_POST:=DFM_library/PLASMON_LIBRARY/plasmon_dispersion_2.f90 \
-		DFM_library/CALCULATORS_LIBRARY/calculators_p.f90 \
-		DFM_library/CALCULATORS_LIBRARY/call_calc_p.f90
-
-calc_OBJS:=$(patsubst %.f90,%.o, $(calc_DEPS) $(calc_SRCS) $(calc_TEST) $(calc_POST))
-
-
-
-SRCS:= $(patsubst %.o,%.f90,$(read_OBJS) $(io_OBJS) $(calc_OBJS))
-OBJS:= $(addprefix $(BUILDDIR)/,$(notdir $(read_OBJS) $(io_OBJS) $(calc_OBJS)))
-
-
-all: obj $(EXE)
-
-
-obj: src $(OBJS)
-
-
-$(EXE): $(OBJS) $(BUILDDIR)/epsilon.f90
-	@echo "building main $@..."
-	@$(FC) $(FFLAGS) $(LDFLAGS) $(LDLIBS) -J $(BUILDDIR) -o $@ $^
-
-
-%.o: %.f90
-	@echo "Compiling $@..."
-	@$(FC) $(FFLAGS) -J $(BUILDDIR) -I. -o $@ -c $^
-
-
-src: $(SRCS) epsilon.f90
-	@echo "updating source tree..."
-	@mkdir -p $(BUILDDIR)
-	@rsync -av $^ $(BUILDDIR)
-
-
-clean:
-	@echo "Cleaning..."
-	@rm -rf $(BUILDDIR)
-	@rm -rf $(EXE)
-
diff --git a/examples/example00.py b/examples/example00.py
new file mode 100644
index 0000000..e98360e
--- /dev/null
+++ b/examples/example00.py
@@ -0,0 +1,73 @@
+#!/usr/bin/env python
+# coding: utf-8
+#
+# Copyright © 2022 - Rennes Physics Institute
+#
+# This file is part of MsSpec-DFM.
+#
+# MsSpec-DFM is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+# MsSpec-DFM is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# You should have received a copy of the GNU General Public License
+# along with MsSpec-DFM.  If not, see <http://www.gnu.org/licenses/>.
+#
+# Source file  : src/python/msspec_dfm/version.py
+# Last modified: Fri, 25 Feb 2022 17:27:32 +0100
+# Committed by : Sylvain Tricot <sylvain.tricot@univ-rennes1.fr> 1645806435 +0100
+
+
+
+# This example shows how to compute the plasmon dispersion for
+# different values of electron densities
+
+# Import section
+from matplotlib import pyplot as plt
+import numpy as np
+
+from msspec_dfm import compute
+
+
+# Electron densities (electrons/cm**3)
+densities = np.array([1e17, 1e18, 1e20, 1e23])
+# Bohr radius (cm)
+a0 = 0.529e-8
+# Temperature
+T = 300
+
+# Loop over density values
+for d in densities:
+    # The density is controlled by the 'RS' parameter, so
+    # compute the corresponding averaged radius (in Bohr units)
+    rs = ( (1/d) / ((4/3) * np.pi) ) ** (1/3) / a0
+    # Some output printing
+    stem = 'plas_disp'
+    print("Computing {} for RS={}".format(stem, rs))
+    # Here is the actual call to calculate
+    data = compute(N_Q=100, RS=rs, T=T)
+    # 'data' is a dict, each key is the name of an output file (without extansion).
+    # The value is the array of output values. The size of this array depends on
+    # the number of points chosen and on the kind of output file.
+
+    # Reading data
+    X, Y = data[stem].T
+    # Plotting
+    plt.plot(X, Y, label=r'density={:.2e} $e/cm^3$'.format(d))
+
+# Plot setup
+plt.xlabel(r'$q/k_F$')
+plt.ylabel(r'$E/E_F$')
+plt.title('Plasmon Energy [T = {:.1f}K]'.format(T))
+plt.grid(True)
+plt.legend()
+# Pops up the graph window
+plt.show()
+
+
+
+
+
diff --git a/src/Makefile b/src/Makefile
new file mode 100644
index 0000000..2540d34
--- /dev/null
+++ b/src/Makefile
@@ -0,0 +1,335 @@
+# Copyright © 2022 - Rennes Physics Institute
+#
+# This file is part of MsSpec-DFM.
+#
+# MsSpec-DFM is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+# MsSpec-DFM is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# You should have received a copy of the GNU General Public License
+# along with MsSpec-DFM.  If not, see <http://www.gnu.org/licenses/>.
+#
+# Source file  : src/Makefile
+# Last modified: Fri, 25 Feb 2022 17:27:18 +0100
+# Committed by : Sylvain Tricot <sylvain.tricot@univ-rennes1.fr> 1645806435 +0100
+
+#
+# Type 'make help' for some help
+#
+###############################################################################
+# OPTIONS                                                                     #
+###############################################################################
+DEBUG    = 0
+BUILDDIR = build
+SO       = eps.so
+FC       = gfortran
+PREFIX   = $(HOME)/.local
+AUTHORS  = Didier Sébilleau <didier.sebilleau@univ-rennes1.fr>, \
+		   Aditi Mandal <p2016009@pilani.bits-pilani.ac.in>, \
+		   Sylvain Tricot <sylvain.tricot@univ-rennes1.fr>
+
+################################################################################
+# /!\ DO NOT EDIT BELOW THAT LINE (unlesss you know what you're doing...)      #
+# CORE CONFIGURATION                                                           #
+################################################################################
+SHELL = bash
+
+ifeq ($(DEBUG),0)
+  FFLAGS =
+else
+  FFLAGS = -g -fbounds-check -fbacktrace -ffpe-trap=zero,overflow,underflow,invalid,denormal
+endif
+
+# Make sure to use binaries of the of the virtualenv
+ifdef VIRTUAL_ENV
+  PYTHON = $(VIRTUAL_ENV)/bin/python
+  F2PY = $(VIRTUAL_ENV)/bin/f2py
+  PIP = $(VIRTUAL_ENV)/bin/pip
+else
+  PYTHON = $(shell which python)
+  F2PY = $(shell which f2py)
+  PIP = $(shell which pip)
+endif
+F2PYFLAGS = --f77exec=$(FC) --f90exec=$(FC)
+
+
+# Ensure FC exists
+ifeq (,$(shell which $(FC)))
+  $(error Missing $(FC) compiler)
+endif
+
+# Ensure python exists
+ifeq (,$(shell which $(PYTHON)))
+  $(error Missing Python executable)
+endif
+
+# Ensure pip is installed
+ifeq (,$(shell which $(PIP)))
+  $(error pip was not found)
+endif
+
+
+
+PYTHON_PKG_NAME = msspec_dfm
+VERSION = $(shell cd python && $(PYTHON) -c 'from $(PYTHON_PKG_NAME) import __version__; print(__version__)')
+SRCDIR  = fortran/DFM_library
+PYPKG   = python/$(PYTHON_PKG_NAME)
+
+
+# Source files
+MANPAGE := man/eps.1
+
+cmn_DEPS:=$(SRCDIR)/ACCURACY_LIBRARY/accuracy.f90 \
+        $(SRCDIR)/INPUT_OUTPUT_LIBRARY/input_values.f90 \
+        $(SRCDIR)/DIMENSIONS_LIBRARY/dimensions.f90 \
+		$(SRCDIR)/UTILITIES_LIBRARY/simple_numbers.f90 \
+		$(SRCDIR)/UTILITIES_LIBRARY/powers_of_ten.f90 \
+		$(SRCDIR)/UTILITIES_LIBRARY/mathematical_constants.f90 \
+		$(SRCDIR)/UTILITIES_LIBRARY/physical_constants.f90 \
+		$(SRCDIR)/UTILITIES_LIBRARY/factorials.f90 \
+		$(SRCDIR)/ERROR_HANDLING_LIBRARY/error_caltech.f90 \
+		$(SRCDIR)/PRINT_LIBRARY/printfiles.f90 \
+		$(SRCDIR)/STRUCTURE_FACTOR_LIBRARY/utic_values.f90 \
+		$(SRCDIR)/DAMPING_LIBRARY/external_damping.f90 \
+		$(SRCDIR)/PHYSICAL_PROPERTIES_LIBRARY/Fermi_values.f90
+
+tool_SRCS:=$(cmn_DEPS) \
+		$(SRCDIR)/VARIOUS_FUNCTIONS_LIBRARY/external_functions.f90 \
+		$(SRCDIR)/VARIOUS_FUNCTIONS_LIBRARY/Lindhard_function.f90 \
+		$(SRCDIR)/VARIOUS_FUNCTIONS_LIBRARY/gamma.f90 \
+		$(SRCDIR)/VARIOUS_FUNCTIONS_LIBRARY/digamma.f90 \
+		$(SRCDIR)/VARIOUS_FUNCTIONS_LIBRARY/2F1_real.f90 \
+		$(SRCDIR)/VARIOUS_FUNCTIONS_LIBRARY/mod_mlf_garrappa.f90 \
+		$(SRCDIR)/UTILITIES_LIBRARY/derivation.f90 \
+		$(SRCDIR)/UTILITIES_LIBRARY/smoothing.f90 \
+		$(SRCDIR)/UTILITIES_LIBRARY/interpolation.f90 \
+		$(SRCDIR)/UTILITIES_LIBRARY/integration.f90 \
+		$(SRCDIR)/UTILITIES_LIBRARY/integration4.f90 \
+		$(SRCDIR)/UTILITIES_LIBRARY/transforms.f90 \
+		$(SRCDIR)/VARIOUS_FUNCTIONS_LIBRARY/basic_functions.f90 \
+		$(SRCDIR)/VARIOUS_FUNCTIONS_LIBRARY/bessel.f90
+
+util_SRCS:=$(cmn_DEPS) \
+		$(SRCDIR)/UTILITIES_LIBRARY/utilities_1.f90 \
+		$(SRCDIR)/SPECIFIC_INTEGRALS_LIBRARY/specific_int_1.f90 \
+		$(SRCDIR)/SPECIFIC_INTEGRALS_LIBRARY/specific_int_4.f90 \
+		$(SRCDIR)/SPECIFIC_INTEGRALS_LIBRARY/specific_int_6.f90 \
+		$(SRCDIR)/SPECIFIC_INTEGRALS_LIBRARY/specific_int_7.f90 \
+		$(SRCDIR)/SPECIFIC_INTEGRALS_LIBRARY/specific_int_8.f90 \
+		$(SRCDIR)/SPECIFIC_INTEGRALS_LIBRARY/specific_int_9.f90 \
+		$(SRCDIR)/UTILITIES_LIBRARY/find_zero.f90 \
+		$(SRCDIR)/UTILITIES_LIBRARY/polynomial_equations.f90
+
+prop_SRCS:=$(cmn_DEPS) \
+		$(SRCDIR)/PHYSICAL_PROPERTIES_LIBRARY/calc_Fermi.f90 \
+		$(SRCDIR)/PLASMON_LIBRARY/plasmon_ene.f90 \
+		$(SRCDIR)/SCALE_PARAMETERS_LIBRARY/scale_parameters.f90 \
+		$(SRCDIR)/ENERGIES_LIBRARY/correlation_energies.f90 \
+		$(SRCDIR)/ENERGIES_LIBRARY/delta_t.f90 \
+		$(SRCDIR)/PHYSICAL_PROPERTIES_LIBRARY/thermodynamic_properties.f90 \
+		$(SRCDIR)/SCREENING_LIBRARY/screening_vec1.f90 \
+		$(SRCDIR)/CONFINEMENT_LIBRARY/confinement_ff.f90 \
+		$(SRCDIR)/CONFINEMENT_LIBRARY/coulomb.f90 \
+		$(SRCDIR)/UTILITIES_LIBRARY/utilities_3.f90 \
+		$(SRCDIR)/PHYSICAL_PROPERTIES_LIBRARY/material_properties.f90 \
+		$(SRCDIR)/THERMAL_PROPERTIES_LIBRARY/thermal_properties.f90 \
+		$(SRCDIR)/ENERGIES_LIBRARY/xc_energies.f90 \
+		$(SRCDIR)/ENERGIES_LIBRARY/exchange_energies.f90 \
+		$(SRCDIR)/ENERGIES_LIBRARY/kinetic_energies.f90 \
+		$(SRCDIR)/PHYSICAL_PROPERTIES_LIBRARY/thermodynamic_quantities.f90 \
+		$(SRCDIR)/THERMAL_PROPERTIES_LIBRARY/chemical_potential.f90 \
+		$(SRCDIR)/UTILITIES_LIBRARY/utilities_4.f90 \
+		$(SRCDIR)/PHYSICAL_PROPERTIES_LIBRARY/calc_energies.f90
+#
+#  Read input data file:
+#
+read_SRCS:=$(tool_SRCS) $(util_SRCS) $(prop_SRCS) \
+		$(SRCDIR)/INPUT_OUTPUT_LIBRARY/read_data.f90
+
+io_SRCS:=$(SRCDIR)/INPUT_OUTPUT_LIBRARY/filenames.f90 \
+		$(SRCDIR)/INPUT_OUTPUT_LIBRARY/outfiles.f90 \
+		$(SRCDIR)/INPUT_OUTPUT_LIBRARY/change_filenames.f90 \
+		$(SRCDIR)/INPUT_OUTPUT_LIBRARY/store_coef.f90 \
+		$(SRCDIR)/INPUT_OUTPUT_LIBRARY/open_files.f90 \
+		$(SRCDIR)/PRINT_LIBRARY/print_headers.f90 \
+		$(SRCDIR)/PRINT_LIBRARY/print_calc_type.f90 \
+		$(SRCDIR)/PRINT_LIBRARY/print_Fermi.f90 \
+		$(SRCDIR)/PRINT_LIBRARY/print_plasmons.f90 \
+		$(SRCDIR)/PRINT_LIBRARY/print_scale_param.f90 \
+		$(SRCDIR)/PRINT_LIBRARY/print_material_lengths.f90 \
+		$(SRCDIR)/PRINT_LIBRARY/print_thermal.f90 \
+		$(SRCDIR)/PRINT_LIBRARY/print_thermodynamics.f90 \
+		$(SRCDIR)/PRINT_LIBRARY/print_energies.f90 \
+		$(SRCDIR)/INPUT_OUTPUT_LIBRARY/close_files.f90
+
+calc_DEPS:=$(cmn_DEPS) \
+		$(SRCDIR)/DIELECTRIC_FUNCTIONS_LIBRARY/dfuncl_static.f90 \
+		$(SRCDIR)/ASYMPTOTIC_VALUES_LIBRARY/gr_asymptotic.f90 \
+		$(SRCDIR)/ASYMPTOTIC_VALUES_LIBRARY/sq_asymptotic.f90 \
+		$(SRCDIR)/CONFINEMENT_LIBRARY/confinement_wf.f90 \
+		$(SRCDIR)/LOCAL_FIELD_LIBRARY/iq_functions_1.f90 \
+		$(SRCDIR)/MOMENTS_LIBRARY/loss_moments.f90 \
+		$(SRCDIR)/PAIR_DISTRIBUTION_FUNCTION/pair_distribution.f90 \
+		$(SRCDIR)/PAIR_CORRELATION_LIBRARY/pair_correlation.f90 \
+		$(SRCDIR)/STRUCTURE_FACTOR_LIBRARY/structure_factor_static.f90 \
+		$(SRCDIR)/LOCAL_FIELD_LIBRARY/iq_functions_2.f90 \
+		$(SRCDIR)/SPECIFIC_INTEGRALS_LIBRARY/specific_int_2.f90 \
+		$(SRCDIR)/ASYMPTOTIC_VALUES_LIBRARY/gamma_asymptotic.f90 \
+		$(SRCDIR)/ASYMPTOTIC_VALUES_LIBRARY/calc_asymptotic.f90 \
+		$(SRCDIR)/LOCAL_FIELD_LIBRARY/local_field_static.f90 \
+		$(SRCDIR)/LOCAL_FIELD_LIBRARY/local_field_static_2.f90 \
+		$(SRCDIR)/STRUCTURE_FACTOR_LIBRARY/structure_factor_static_2.f90 \
+		$(SRCDIR)/NEVANLINNA_FUNCTIONS_LIBRARY/Nevanlinna_functions.f90 \
+		$(SRCDIR)/MEMORY_FUNCTIONS_LIBRARY/memory_functions.f90 \
+		$(SRCDIR)/SCREENING_LIBRARY/screening_vec2.f90 \
+		$(SRCDIR)/UTILITIES_LIBRARY/velocities.f90 \
+		$(SRCDIR)/SCALE_PARAMETERS_LIBRARY/scale_parameters.f90 \
+		$(SRCDIR)/MOMENTS_LIBRARY/moments.f90 \
+		$(SRCDIR)/SPECIFIC_INTEGRALS_LIBRARY/specific_int_3.f90 \
+		$(SRCDIR)/SPECIFIC_INTEGRALS_LIBRARY/specific_int_10.f90 \
+		$(SRCDIR)/VARIOUS_FUNCTIONS_LIBRARY/coulomb_log.f90 \
+		$(SRCDIR)/DAMPING_LIBRARY/packing_fraction.f90 \
+		$(SRCDIR)/DAMPING_LIBRARY/classical_fluid.f90 \
+		$(SRCDIR)/DAMPING_LIBRARY/diffusion_coefficient.f90 \
+		$(SRCDIR)/DAMPING_LIBRARY/electron_phonon_int.f90 \
+		$(SRCDIR)/DAMPING_LIBRARY/scattering_length.f90 \
+		$(SRCDIR)/DAMPING_LIBRARY/lifetime.f90 \
+		$(SRCDIR)/DAMPING_LIBRARY/viscosity.f90 \
+		$(SRCDIR)/DAMPING_LIBRARY/relaxation_time_static.f90 \
+		$(SRCDIR)/UTILITIES_LIBRARY/utic_parameters.f90 \
+		$(SRCDIR)/DAMPING_LIBRARY/decay_rate.f90 \
+		$(SRCDIR)/DAMPING_LIBRARY/calc_damping.f90 \
+		$(SRCDIR)/DAMPING_LIBRARY/diffusion_coefficient_2.f90 \
+		$(SRCDIR)/PLASMON_LIBRARY/plasmon_dispersion.f90 \
+		$(SRCDIR)/PLASMON_LIBRARY/q_bounds.f90 \
+		$(SRCDIR)/DAMPING_LIBRARY/plasmon_damping.f90 \
+		$(SRCDIR)/PHYSICAL_PROPERTIES_LIBRARY/calc_energies.f90 \
+		$(SRCDIR)/PHYSICAL_PROPERTIES_LIBRARY/grand_partition.f90 \
+		$(SRCDIR)/UTILITIES_LIBRARY/utilities_2.f90 \
+		$(SRCDIR)/LANDAU_PARAMETERS_LIBRARY/landau.f90 \
+		$(SRCDIR)/VARIOUS_FUNCTIONS_LIBRARY/phi_function.f90 \
+		$(SRCDIR)/DIELECTRIC_FUNCTIONS_LIBRARY/dfuncl_stan_dynamic.f90 \
+		$(SRCDIR)/DIELECTRIC_FUNCTIONS_LIBRARY/dfuncl_magn_dynamic.f90 \
+		$(SRCDIR)/DIELECTRIC_FUNCTIONS_LIBRARY/dfunct_dynamic.f90 \
+		$(SRCDIR)/STRUCTURE_FACTOR_LIBRARY/structure_factor_dynamic_2.f90 \
+		$(SRCDIR)/INTERACTION_POTENTIALS_LIBRARY/interaction_potentials_r.f90 \
+		$(SRCDIR)/INTERACTION_POTENTIALS_LIBRARY/interaction_potentials_k.f90 \
+		$(SRCDIR)/DAMPING_LIBRARY/decay_rate.f90 \
+		$(SRCDIR)/STRUCTURE_FACTOR_LIBRARY/structure_factor_dynamic.f90 \
+		$(SRCDIR)/DIELECTRIC_FUNCTIONS_LIBRARY/dfuncl_stan_dynamic_2.f90 \
+		$(SRCDIR)/DAMPING_LIBRARY/mean_free_path.f90 \
+		$(SRCDIR)/SPECTRAL_FUNCTION_LIBRARY/spectral_function.f90 \
+		$(SRCDIR)/LOCAL_FIELD_LIBRARY/local_field_dynamic.f90 \
+		$(SRCDIR)/PRINT_LIBRARY/print_asymptotic.f90 \
+		$(SRCDIR)/POST_PROCESSING_LIBRARY/re_eps_0_treatment.f90 \
+		$(SRCDIR)/MOMENTS_LIBRARY/moments_loss.f90 \
+		$(SRCDIR)/SPECIFIC_INTEGRALS_LIBRARY/specific_int_5.f90
+#
+#  Calculators:
+#
+calc_SRCS:=$(SRCDIR)/CALCULATORS_LIBRARY/calculators_1.f90 \
+		$(SRCDIR)/CALCULATORS_LIBRARY/calculators_2.f90 \
+		$(SRCDIR)/CALCULATORS_LIBRARY/calculators_3.f90 \
+		$(SRCDIR)/CALCULATORS_LIBRARY/calculators_5.f90 \
+		$(SRCDIR)/CALCULATORS_LIBRARY/calculators_7.f90 \
+		$(SRCDIR)/CALCULATORS_LIBRARY/calculators_8.f90 \
+		$(SRCDIR)/CALCULATORS_LIBRARY/calculators_9.f90 \
+		$(SRCDIR)/CALCULATORS_LIBRARY/call_calc_1.f90 \
+		$(SRCDIR)/CALCULATORS_LIBRARY/call_calc_2.f90 \
+		$(SRCDIR)/CALCULATORS_LIBRARY/call_calc_3.f90 \
+		$(SRCDIR)/CALCULATORS_LIBRARY/call_calc_5.f90 \
+		$(SRCDIR)/CALCULATORS_LIBRARY/call_calc_7.f90 \
+		$(SRCDIR)/CALCULATORS_LIBRARY/call_calc_8.f90 \
+		$(SRCDIR)/CALCULATORS_LIBRARY/call_calc_9.f90
+#
+#  Test_integrals:
+#
+calc_TEST:=$(SRCDIR)/TEST_LIBRARY/test_integrals_2.f90 \
+		$(SRCDIR)/TEST_LIBRARY/test_integrals_3.f90 \
+		$(SRCDIR)/TEST_LIBRARY/test_integrals_8.f90 \
+		$(SRCDIR)/TEST_LIBRARY/test_int_Hubbard.f90
+#
+#  Post-processing:
+#
+calc_POST:=$(SRCDIR)/PLASMON_LIBRARY/plasmon_dispersion_2.f90 \
+		$(SRCDIR)/CALCULATORS_LIBRARY/calculators_p.f90 \
+		$(SRCDIR)/CALCULATORS_LIBRARY/call_calc_p.f90
+
+
+SRCS:=$(read_SRCS) $(io_SRCS) $(calc_DEPS) $(calc_SRCS) $(calc_TEST) $(calc_POST)
+OBJS:=$(addprefix $(BUILDDIR)/,$(patsubst %.f90,%.o,$(SRCS)))
+
+
+.PHONY: all obj so pypkg required_python_packages install uninstall man clean help
+
+
+all: required_python_packages so
+
+
+obj: $(OBJS)
+
+
+so: python/$(PYTHON_PKG_NAME)/$(SO)
+
+
+pypkg: python/dist/$(PYTHON_PKG_NAME)-$(VERSION).tar.gz
+
+
+required_python_packages:
+	@$(PIP) install numpy matplotlib click-man
+
+
+python/VERSION:
+	@cat $(VERSION) > $@
+
+
+install: python/dist/$(PYTHON_PKG_NAME)-$(VERSION).tar.gz
+	@echo "Installing $^"
+	@$(PIP) install $^
+
+
+python/dist/$(PYTHON_PKG_NAME)-$(VERSION).tar.gz: python/$(PYTHON_PKG_NAME)/$(SO)
+python/dist/$(PYTHON_PKG_NAME)-$(VERSION).tar.gz: man
+python/dist/$(PYTHON_PKG_NAME)-$(VERSION).tar.gz: python/MANIFEST.in python/setup.py python/pip.freeze $(shell find python/$(PYTHON_PKG_NAME) -name '*.py')
+	@cd python && $(PYTHON) setup.py sdist
+
+
+python/$(PYTHON_PKG_NAME)/$(SO): $(OBJS) $(SRCDIR)/../_dfm.f90
+	@echo "Building $@ shared object..."
+	@mkdir -p $(BUILDDIR)
+	@$(F2PY) $(F2PYFLAGS) -I$(BUILDDIR) -m $(BUILDDIR).$(basename $(@F)) -c $(filter-out $(lastword $^), $^) $(SRCDIR)/../_dfm.f90 && mv $(BUILDDIR)/*.so $@
+
+
+$(BUILDDIR)/%.o: %.f90
+	@echo "Compiling $@..."
+	@mkdir -p $(BUILDDIR)/$(dir $^)
+	@$(FC) $(FFLAGS) -J $(BUILDDIR) -I $(BUILDDIR) -fPIC -o $@ -c $<
+
+
+man: python/man/inputfile.spec
+	@cd python && $(PYTHON) setup.py --command-packages=click_man.commands man_pages --target ./man/pages
+	@cd python/man/pages && cat ../inputfile.spec >> *-generate.1
+	@cd python/man/pages && echo -e ".SH AUTHORS\n.PP\n$(AUTHORS)" | tee -a *.1 > /dev/null
+	@cd python/man/pages && gzip -f *.1
+
+
+uninstall:
+	@$(PIP) uninstall -y $(PYTHON_PKG_NAME)
+
+
+clean:
+	@rm -rf  $(BUILDDIR)
+	@rm -f   python/$(PYTHON_PKG_NAME)/*.so
+	@rm -rf  python/dist 
+	@rm -rf  python/*.egg-info
+	@rm -f   python/VERSION
+	@rm -rf  python/man/pages
+
+
+help:
+	@echo "Type 'make' or 'make all' to build."
+	@echo "Type 'make install' to install the code."
diff --git a/New_libraries/DFM_library/ACCURACY_LIBRARY/accuracy.f90 b/src/fortran/DFM_library/ACCURACY_LIBRARY/accuracy.f90
similarity index 100%
rename from New_libraries/DFM_library/ACCURACY_LIBRARY/accuracy.f90
rename to src/fortran/DFM_library/ACCURACY_LIBRARY/accuracy.f90
diff --git a/New_libraries/DFM_library/ASYMPTOTIC_VALUES_LIBRARY/calc_asymptotic.f90 b/src/fortran/DFM_library/ASYMPTOTIC_VALUES_LIBRARY/calc_asymptotic.f90
similarity index 100%
rename from New_libraries/DFM_library/ASYMPTOTIC_VALUES_LIBRARY/calc_asymptotic.f90
rename to src/fortran/DFM_library/ASYMPTOTIC_VALUES_LIBRARY/calc_asymptotic.f90
diff --git a/New_libraries/DFM_library/ASYMPTOTIC_VALUES_LIBRARY/gamma_asymptotic.f90 b/src/fortran/DFM_library/ASYMPTOTIC_VALUES_LIBRARY/gamma_asymptotic.f90
similarity index 100%
rename from New_libraries/DFM_library/ASYMPTOTIC_VALUES_LIBRARY/gamma_asymptotic.f90
rename to src/fortran/DFM_library/ASYMPTOTIC_VALUES_LIBRARY/gamma_asymptotic.f90
diff --git a/New_libraries/DFM_library/ASYMPTOTIC_VALUES_LIBRARY/gr_asymptotic.f90 b/src/fortran/DFM_library/ASYMPTOTIC_VALUES_LIBRARY/gr_asymptotic.f90
similarity index 100%
rename from New_libraries/DFM_library/ASYMPTOTIC_VALUES_LIBRARY/gr_asymptotic.f90
rename to src/fortran/DFM_library/ASYMPTOTIC_VALUES_LIBRARY/gr_asymptotic.f90
diff --git a/New_libraries/DFM_library/ASYMPTOTIC_VALUES_LIBRARY/sq_asymptotic.f90 b/src/fortran/DFM_library/ASYMPTOTIC_VALUES_LIBRARY/sq_asymptotic.f90
similarity index 100%
rename from New_libraries/DFM_library/ASYMPTOTIC_VALUES_LIBRARY/sq_asymptotic.f90
rename to src/fortran/DFM_library/ASYMPTOTIC_VALUES_LIBRARY/sq_asymptotic.f90
diff --git a/New_libraries/DFM_library/CALCULATORS_LIBRARY/calculators_1.f90 b/src/fortran/DFM_library/CALCULATORS_LIBRARY/calculators_1.f90
similarity index 100%
rename from New_libraries/DFM_library/CALCULATORS_LIBRARY/calculators_1.f90
rename to src/fortran/DFM_library/CALCULATORS_LIBRARY/calculators_1.f90
diff --git a/New_libraries/DFM_library/CALCULATORS_LIBRARY/calculators_2.f90 b/src/fortran/DFM_library/CALCULATORS_LIBRARY/calculators_2.f90
similarity index 100%
rename from New_libraries/DFM_library/CALCULATORS_LIBRARY/calculators_2.f90
rename to src/fortran/DFM_library/CALCULATORS_LIBRARY/calculators_2.f90
diff --git a/New_libraries/DFM_library/CALCULATORS_LIBRARY/calculators_3.f90 b/src/fortran/DFM_library/CALCULATORS_LIBRARY/calculators_3.f90
similarity index 100%
rename from New_libraries/DFM_library/CALCULATORS_LIBRARY/calculators_3.f90
rename to src/fortran/DFM_library/CALCULATORS_LIBRARY/calculators_3.f90
diff --git a/New_libraries/DFM_library/CALCULATORS_LIBRARY/calculators_4.f90 b/src/fortran/DFM_library/CALCULATORS_LIBRARY/calculators_4.f90
similarity index 100%
rename from New_libraries/DFM_library/CALCULATORS_LIBRARY/calculators_4.f90
rename to src/fortran/DFM_library/CALCULATORS_LIBRARY/calculators_4.f90
diff --git a/New_libraries/DFM_library/CALCULATORS_LIBRARY/calculators_5.f90 b/src/fortran/DFM_library/CALCULATORS_LIBRARY/calculators_5.f90
similarity index 100%
rename from New_libraries/DFM_library/CALCULATORS_LIBRARY/calculators_5.f90
rename to src/fortran/DFM_library/CALCULATORS_LIBRARY/calculators_5.f90
diff --git a/New_libraries/DFM_library/CALCULATORS_LIBRARY/calculators_6.f90 b/src/fortran/DFM_library/CALCULATORS_LIBRARY/calculators_6.f90
similarity index 100%
rename from New_libraries/DFM_library/CALCULATORS_LIBRARY/calculators_6.f90
rename to src/fortran/DFM_library/CALCULATORS_LIBRARY/calculators_6.f90
diff --git a/New_libraries/DFM_library/CALCULATORS_LIBRARY/calculators_7.f90 b/src/fortran/DFM_library/CALCULATORS_LIBRARY/calculators_7.f90
similarity index 100%
rename from New_libraries/DFM_library/CALCULATORS_LIBRARY/calculators_7.f90
rename to src/fortran/DFM_library/CALCULATORS_LIBRARY/calculators_7.f90
diff --git a/New_libraries/DFM_library/CALCULATORS_LIBRARY/calculators_8.f90 b/src/fortran/DFM_library/CALCULATORS_LIBRARY/calculators_8.f90
similarity index 100%
rename from New_libraries/DFM_library/CALCULATORS_LIBRARY/calculators_8.f90
rename to src/fortran/DFM_library/CALCULATORS_LIBRARY/calculators_8.f90
diff --git a/New_libraries/DFM_library/CALCULATORS_LIBRARY/calculators_9.f90 b/src/fortran/DFM_library/CALCULATORS_LIBRARY/calculators_9.f90
similarity index 100%
rename from New_libraries/DFM_library/CALCULATORS_LIBRARY/calculators_9.f90
rename to src/fortran/DFM_library/CALCULATORS_LIBRARY/calculators_9.f90
diff --git a/New_libraries/DFM_library/CALCULATORS_LIBRARY/calculators_p.f90 b/src/fortran/DFM_library/CALCULATORS_LIBRARY/calculators_p.f90
similarity index 100%
rename from New_libraries/DFM_library/CALCULATORS_LIBRARY/calculators_p.f90
rename to src/fortran/DFM_library/CALCULATORS_LIBRARY/calculators_p.f90
diff --git a/New_libraries/DFM_library/CALCULATORS_LIBRARY/call_calc_1.f90 b/src/fortran/DFM_library/CALCULATORS_LIBRARY/call_calc_1.f90
similarity index 100%
rename from New_libraries/DFM_library/CALCULATORS_LIBRARY/call_calc_1.f90
rename to src/fortran/DFM_library/CALCULATORS_LIBRARY/call_calc_1.f90
diff --git a/New_libraries/DFM_library/CALCULATORS_LIBRARY/call_calc_2.f90 b/src/fortran/DFM_library/CALCULATORS_LIBRARY/call_calc_2.f90
similarity index 100%
rename from New_libraries/DFM_library/CALCULATORS_LIBRARY/call_calc_2.f90
rename to src/fortran/DFM_library/CALCULATORS_LIBRARY/call_calc_2.f90
diff --git a/New_libraries/DFM_library/CALCULATORS_LIBRARY/call_calc_3.f90 b/src/fortran/DFM_library/CALCULATORS_LIBRARY/call_calc_3.f90
similarity index 100%
rename from New_libraries/DFM_library/CALCULATORS_LIBRARY/call_calc_3.f90
rename to src/fortran/DFM_library/CALCULATORS_LIBRARY/call_calc_3.f90
diff --git a/New_libraries/DFM_library/CALCULATORS_LIBRARY/call_calc_4.f90 b/src/fortran/DFM_library/CALCULATORS_LIBRARY/call_calc_4.f90
similarity index 100%
rename from New_libraries/DFM_library/CALCULATORS_LIBRARY/call_calc_4.f90
rename to src/fortran/DFM_library/CALCULATORS_LIBRARY/call_calc_4.f90
diff --git a/New_libraries/DFM_library/CALCULATORS_LIBRARY/call_calc_5.f90 b/src/fortran/DFM_library/CALCULATORS_LIBRARY/call_calc_5.f90
similarity index 100%
rename from New_libraries/DFM_library/CALCULATORS_LIBRARY/call_calc_5.f90
rename to src/fortran/DFM_library/CALCULATORS_LIBRARY/call_calc_5.f90
diff --git a/New_libraries/DFM_library/CALCULATORS_LIBRARY/call_calc_6.f90 b/src/fortran/DFM_library/CALCULATORS_LIBRARY/call_calc_6.f90
similarity index 100%
rename from New_libraries/DFM_library/CALCULATORS_LIBRARY/call_calc_6.f90
rename to src/fortran/DFM_library/CALCULATORS_LIBRARY/call_calc_6.f90
diff --git a/New_libraries/DFM_library/CALCULATORS_LIBRARY/call_calc_7.f90 b/src/fortran/DFM_library/CALCULATORS_LIBRARY/call_calc_7.f90
similarity index 100%
rename from New_libraries/DFM_library/CALCULATORS_LIBRARY/call_calc_7.f90
rename to src/fortran/DFM_library/CALCULATORS_LIBRARY/call_calc_7.f90
diff --git a/New_libraries/DFM_library/CALCULATORS_LIBRARY/call_calc_8.f90 b/src/fortran/DFM_library/CALCULATORS_LIBRARY/call_calc_8.f90
similarity index 100%
rename from New_libraries/DFM_library/CALCULATORS_LIBRARY/call_calc_8.f90
rename to src/fortran/DFM_library/CALCULATORS_LIBRARY/call_calc_8.f90
diff --git a/New_libraries/DFM_library/CALCULATORS_LIBRARY/call_calc_9.f90 b/src/fortran/DFM_library/CALCULATORS_LIBRARY/call_calc_9.f90
similarity index 100%
rename from New_libraries/DFM_library/CALCULATORS_LIBRARY/call_calc_9.f90
rename to src/fortran/DFM_library/CALCULATORS_LIBRARY/call_calc_9.f90
diff --git a/New_libraries/DFM_library/CALCULATORS_LIBRARY/call_calc_p.f90 b/src/fortran/DFM_library/CALCULATORS_LIBRARY/call_calc_p.f90
similarity index 100%
rename from New_libraries/DFM_library/CALCULATORS_LIBRARY/call_calc_p.f90
rename to src/fortran/DFM_library/CALCULATORS_LIBRARY/call_calc_p.f90
diff --git a/New_libraries/DFM_library/CONFINEMENT_LIBRARY/Note.txt b/src/fortran/DFM_library/CONFINEMENT_LIBRARY/Note.txt
similarity index 100%
rename from New_libraries/DFM_library/CONFINEMENT_LIBRARY/Note.txt
rename to src/fortran/DFM_library/CONFINEMENT_LIBRARY/Note.txt
diff --git a/New_libraries/DFM_library/CONFINEMENT_LIBRARY/confinement_ff.f90 b/src/fortran/DFM_library/CONFINEMENT_LIBRARY/confinement_ff.f90
similarity index 100%
rename from New_libraries/DFM_library/CONFINEMENT_LIBRARY/confinement_ff.f90
rename to src/fortran/DFM_library/CONFINEMENT_LIBRARY/confinement_ff.f90
diff --git a/New_libraries/DFM_library/CONFINEMENT_LIBRARY/confinement_wf.f90 b/src/fortran/DFM_library/CONFINEMENT_LIBRARY/confinement_wf.f90
similarity index 100%
rename from New_libraries/DFM_library/CONFINEMENT_LIBRARY/confinement_wf.f90
rename to src/fortran/DFM_library/CONFINEMENT_LIBRARY/confinement_wf.f90
diff --git a/New_libraries/DFM_library/CONFINEMENT_LIBRARY/coulomb.f90 b/src/fortran/DFM_library/CONFINEMENT_LIBRARY/coulomb.f90
similarity index 100%
rename from New_libraries/DFM_library/CONFINEMENT_LIBRARY/coulomb.f90
rename to src/fortran/DFM_library/CONFINEMENT_LIBRARY/coulomb.f90
diff --git a/New_libraries/DFM_library/DAMPING_LIBRARY/calc_damping.f90 b/src/fortran/DFM_library/DAMPING_LIBRARY/calc_damping.f90
similarity index 100%
rename from New_libraries/DFM_library/DAMPING_LIBRARY/calc_damping.f90
rename to src/fortran/DFM_library/DAMPING_LIBRARY/calc_damping.f90
diff --git a/New_libraries/DFM_library/DAMPING_LIBRARY/classical_fluid.f90 b/src/fortran/DFM_library/DAMPING_LIBRARY/classical_fluid.f90
similarity index 100%
rename from New_libraries/DFM_library/DAMPING_LIBRARY/classical_fluid.f90
rename to src/fortran/DFM_library/DAMPING_LIBRARY/classical_fluid.f90
diff --git a/New_libraries/DFM_library/DAMPING_LIBRARY/decay_rate.f90 b/src/fortran/DFM_library/DAMPING_LIBRARY/decay_rate.f90
similarity index 100%
rename from New_libraries/DFM_library/DAMPING_LIBRARY/decay_rate.f90
rename to src/fortran/DFM_library/DAMPING_LIBRARY/decay_rate.f90
diff --git a/New_libraries/DFM_library/DAMPING_LIBRARY/diffusion_coefficient.f90 b/src/fortran/DFM_library/DAMPING_LIBRARY/diffusion_coefficient.f90
similarity index 100%
rename from New_libraries/DFM_library/DAMPING_LIBRARY/diffusion_coefficient.f90
rename to src/fortran/DFM_library/DAMPING_LIBRARY/diffusion_coefficient.f90
diff --git a/New_libraries/DFM_library/DAMPING_LIBRARY/diffusion_coefficient_2.f90 b/src/fortran/DFM_library/DAMPING_LIBRARY/diffusion_coefficient_2.f90
similarity index 100%
rename from New_libraries/DFM_library/DAMPING_LIBRARY/diffusion_coefficient_2.f90
rename to src/fortran/DFM_library/DAMPING_LIBRARY/diffusion_coefficient_2.f90
diff --git a/New_libraries/DFM_library/DAMPING_LIBRARY/electron_phonon_int.f90 b/src/fortran/DFM_library/DAMPING_LIBRARY/electron_phonon_int.f90
similarity index 100%
rename from New_libraries/DFM_library/DAMPING_LIBRARY/electron_phonon_int.f90
rename to src/fortran/DFM_library/DAMPING_LIBRARY/electron_phonon_int.f90
diff --git a/New_libraries/DFM_library/DAMPING_LIBRARY/external_damping.f90 b/src/fortran/DFM_library/DAMPING_LIBRARY/external_damping.f90
similarity index 100%
rename from New_libraries/DFM_library/DAMPING_LIBRARY/external_damping.f90
rename to src/fortran/DFM_library/DAMPING_LIBRARY/external_damping.f90
diff --git a/New_libraries/DFM_library/DAMPING_LIBRARY/lifetime.f90 b/src/fortran/DFM_library/DAMPING_LIBRARY/lifetime.f90
similarity index 100%
rename from New_libraries/DFM_library/DAMPING_LIBRARY/lifetime.f90
rename to src/fortran/DFM_library/DAMPING_LIBRARY/lifetime.f90
diff --git a/New_libraries/DFM_library/DAMPING_LIBRARY/mean_free_path.f90 b/src/fortran/DFM_library/DAMPING_LIBRARY/mean_free_path.f90
similarity index 100%
rename from New_libraries/DFM_library/DAMPING_LIBRARY/mean_free_path.f90
rename to src/fortran/DFM_library/DAMPING_LIBRARY/mean_free_path.f90
diff --git a/New_libraries/DFM_library/DAMPING_LIBRARY/packing_fraction.f90 b/src/fortran/DFM_library/DAMPING_LIBRARY/packing_fraction.f90
similarity index 100%
rename from New_libraries/DFM_library/DAMPING_LIBRARY/packing_fraction.f90
rename to src/fortran/DFM_library/DAMPING_LIBRARY/packing_fraction.f90
diff --git a/New_libraries/DFM_library/DAMPING_LIBRARY/plasmon_damping.f90 b/src/fortran/DFM_library/DAMPING_LIBRARY/plasmon_damping.f90
similarity index 100%
rename from New_libraries/DFM_library/DAMPING_LIBRARY/plasmon_damping.f90
rename to src/fortran/DFM_library/DAMPING_LIBRARY/plasmon_damping.f90
diff --git a/New_libraries/DFM_library/DAMPING_LIBRARY/relaxation_time_dynamic.f90 b/src/fortran/DFM_library/DAMPING_LIBRARY/relaxation_time_dynamic.f90
similarity index 100%
rename from New_libraries/DFM_library/DAMPING_LIBRARY/relaxation_time_dynamic.f90
rename to src/fortran/DFM_library/DAMPING_LIBRARY/relaxation_time_dynamic.f90
diff --git a/New_libraries/DFM_library/DAMPING_LIBRARY/relaxation_time_static.f90 b/src/fortran/DFM_library/DAMPING_LIBRARY/relaxation_time_static.f90
similarity index 100%
rename from New_libraries/DFM_library/DAMPING_LIBRARY/relaxation_time_static.f90
rename to src/fortran/DFM_library/DAMPING_LIBRARY/relaxation_time_static.f90
diff --git a/New_libraries/DFM_library/DAMPING_LIBRARY/scattering_length.f90 b/src/fortran/DFM_library/DAMPING_LIBRARY/scattering_length.f90
similarity index 100%
rename from New_libraries/DFM_library/DAMPING_LIBRARY/scattering_length.f90
rename to src/fortran/DFM_library/DAMPING_LIBRARY/scattering_length.f90
diff --git a/New_libraries/DFM_library/DAMPING_LIBRARY/viscosity.f90 b/src/fortran/DFM_library/DAMPING_LIBRARY/viscosity.f90
similarity index 100%
rename from New_libraries/DFM_library/DAMPING_LIBRARY/viscosity.f90
rename to src/fortran/DFM_library/DAMPING_LIBRARY/viscosity.f90
diff --git a/New_libraries/DFM_library/DIELECTRIC_FUNCTIONS_LIBRARY/dfuncl_magn_dynamic.f90 b/src/fortran/DFM_library/DIELECTRIC_FUNCTIONS_LIBRARY/dfuncl_magn_dynamic.f90
similarity index 100%
rename from New_libraries/DFM_library/DIELECTRIC_FUNCTIONS_LIBRARY/dfuncl_magn_dynamic.f90
rename to src/fortran/DFM_library/DIELECTRIC_FUNCTIONS_LIBRARY/dfuncl_magn_dynamic.f90
diff --git a/New_libraries/DFM_library/DIELECTRIC_FUNCTIONS_LIBRARY/dfuncl_stan_dynamic.f90 b/src/fortran/DFM_library/DIELECTRIC_FUNCTIONS_LIBRARY/dfuncl_stan_dynamic.f90
similarity index 100%
rename from New_libraries/DFM_library/DIELECTRIC_FUNCTIONS_LIBRARY/dfuncl_stan_dynamic.f90
rename to src/fortran/DFM_library/DIELECTRIC_FUNCTIONS_LIBRARY/dfuncl_stan_dynamic.f90
diff --git a/New_libraries/DFM_library/DIELECTRIC_FUNCTIONS_LIBRARY/dfuncl_stan_dynamic.f90~ b/src/fortran/DFM_library/DIELECTRIC_FUNCTIONS_LIBRARY/dfuncl_stan_dynamic.f90~
similarity index 100%
rename from New_libraries/DFM_library/DIELECTRIC_FUNCTIONS_LIBRARY/dfuncl_stan_dynamic.f90~
rename to src/fortran/DFM_library/DIELECTRIC_FUNCTIONS_LIBRARY/dfuncl_stan_dynamic.f90~
diff --git a/New_libraries/DFM_library/DIELECTRIC_FUNCTIONS_LIBRARY/dfuncl_stan_dynamic_2.f90 b/src/fortran/DFM_library/DIELECTRIC_FUNCTIONS_LIBRARY/dfuncl_stan_dynamic_2.f90
similarity index 100%
rename from New_libraries/DFM_library/DIELECTRIC_FUNCTIONS_LIBRARY/dfuncl_stan_dynamic_2.f90
rename to src/fortran/DFM_library/DIELECTRIC_FUNCTIONS_LIBRARY/dfuncl_stan_dynamic_2.f90
diff --git a/New_libraries/DFM_library/DIELECTRIC_FUNCTIONS_LIBRARY/dfuncl_static.f90 b/src/fortran/DFM_library/DIELECTRIC_FUNCTIONS_LIBRARY/dfuncl_static.f90
similarity index 100%
rename from New_libraries/DFM_library/DIELECTRIC_FUNCTIONS_LIBRARY/dfuncl_static.f90
rename to src/fortran/DFM_library/DIELECTRIC_FUNCTIONS_LIBRARY/dfuncl_static.f90
diff --git a/New_libraries/DFM_library/DIELECTRIC_FUNCTIONS_LIBRARY/dfunct_dynamic.f90 b/src/fortran/DFM_library/DIELECTRIC_FUNCTIONS_LIBRARY/dfunct_dynamic.f90
similarity index 100%
rename from New_libraries/DFM_library/DIELECTRIC_FUNCTIONS_LIBRARY/dfunct_dynamic.f90
rename to src/fortran/DFM_library/DIELECTRIC_FUNCTIONS_LIBRARY/dfunct_dynamic.f90
diff --git a/New_libraries/DFM_library/DIMENSIONS_LIBRARY/dimensions.f90 b/src/fortran/DFM_library/DIMENSIONS_LIBRARY/dimensions.f90
similarity index 100%
rename from New_libraries/DFM_library/DIMENSIONS_LIBRARY/dimensions.f90
rename to src/fortran/DFM_library/DIMENSIONS_LIBRARY/dimensions.f90
diff --git a/New_libraries/DFM_library/ENERGIES_LIBRARY/PhysRevB.11.113.pdf b/src/fortran/DFM_library/ENERGIES_LIBRARY/PhysRevB.11.113.pdf
similarity index 100%
rename from New_libraries/DFM_library/ENERGIES_LIBRARY/PhysRevB.11.113.pdf
rename to src/fortran/DFM_library/ENERGIES_LIBRARY/PhysRevB.11.113.pdf
diff --git a/New_libraries/DFM_library/ENERGIES_LIBRARY/correlation_energies.f90 b/src/fortran/DFM_library/ENERGIES_LIBRARY/correlation_energies.f90
similarity index 100%
rename from New_libraries/DFM_library/ENERGIES_LIBRARY/correlation_energies.f90
rename to src/fortran/DFM_library/ENERGIES_LIBRARY/correlation_energies.f90
diff --git a/New_libraries/DFM_library/ENERGIES_LIBRARY/delta_t.f90 b/src/fortran/DFM_library/ENERGIES_LIBRARY/delta_t.f90
similarity index 100%
rename from New_libraries/DFM_library/ENERGIES_LIBRARY/delta_t.f90
rename to src/fortran/DFM_library/ENERGIES_LIBRARY/delta_t.f90
diff --git a/New_libraries/DFM_library/ENERGIES_LIBRARY/exchange_energies.f90 b/src/fortran/DFM_library/ENERGIES_LIBRARY/exchange_energies.f90
similarity index 100%
rename from New_libraries/DFM_library/ENERGIES_LIBRARY/exchange_energies.f90
rename to src/fortran/DFM_library/ENERGIES_LIBRARY/exchange_energies.f90
diff --git a/New_libraries/DFM_library/ENERGIES_LIBRARY/kinetic_energies.f90 b/src/fortran/DFM_library/ENERGIES_LIBRARY/kinetic_energies.f90
similarity index 100%
rename from New_libraries/DFM_library/ENERGIES_LIBRARY/kinetic_energies.f90
rename to src/fortran/DFM_library/ENERGIES_LIBRARY/kinetic_energies.f90
diff --git a/New_libraries/DFM_library/ENERGIES_LIBRARY/xc_energies.f90 b/src/fortran/DFM_library/ENERGIES_LIBRARY/xc_energies.f90
similarity index 100%
rename from New_libraries/DFM_library/ENERGIES_LIBRARY/xc_energies.f90
rename to src/fortran/DFM_library/ENERGIES_LIBRARY/xc_energies.f90
diff --git a/New_libraries/DFM_library/ERROR_HANDLING_LIBRARY/error_caltech.f90 b/src/fortran/DFM_library/ERROR_HANDLING_LIBRARY/error_caltech.f90
similarity index 100%
rename from New_libraries/DFM_library/ERROR_HANDLING_LIBRARY/error_caltech.f90
rename to src/fortran/DFM_library/ERROR_HANDLING_LIBRARY/error_caltech.f90
diff --git a/New_libraries/DFM_library/INPUT_OUTPUT_LIBRARY/change_filenames.f90 b/src/fortran/DFM_library/INPUT_OUTPUT_LIBRARY/change_filenames.f90
similarity index 100%
rename from New_libraries/DFM_library/INPUT_OUTPUT_LIBRARY/change_filenames.f90
rename to src/fortran/DFM_library/INPUT_OUTPUT_LIBRARY/change_filenames.f90
diff --git a/New_libraries/DFM_library/INPUT_OUTPUT_LIBRARY/close_files.f90 b/src/fortran/DFM_library/INPUT_OUTPUT_LIBRARY/close_files.f90
similarity index 100%
rename from New_libraries/DFM_library/INPUT_OUTPUT_LIBRARY/close_files.f90
rename to src/fortran/DFM_library/INPUT_OUTPUT_LIBRARY/close_files.f90
diff --git a/New_libraries/DFM_library/INPUT_OUTPUT_LIBRARY/diel_func.txt b/src/fortran/DFM_library/INPUT_OUTPUT_LIBRARY/diel_func.txt
similarity index 100%
rename from New_libraries/DFM_library/INPUT_OUTPUT_LIBRARY/diel_func.txt
rename to src/fortran/DFM_library/INPUT_OUTPUT_LIBRARY/diel_func.txt
diff --git a/New_libraries/DFM_library/INPUT_OUTPUT_LIBRARY/filenames.f90 b/src/fortran/DFM_library/INPUT_OUTPUT_LIBRARY/filenames.f90
similarity index 100%
rename from New_libraries/DFM_library/INPUT_OUTPUT_LIBRARY/filenames.f90
rename to src/fortran/DFM_library/INPUT_OUTPUT_LIBRARY/filenames.f90
diff --git a/New_libraries/DFM_library/INPUT_OUTPUT_LIBRARY/input_values.f90 b/src/fortran/DFM_library/INPUT_OUTPUT_LIBRARY/input_values.f90
similarity index 100%
rename from New_libraries/DFM_library/INPUT_OUTPUT_LIBRARY/input_values.f90
rename to src/fortran/DFM_library/INPUT_OUTPUT_LIBRARY/input_values.f90
diff --git a/New_libraries/DFM_library/INPUT_OUTPUT_LIBRARY/missing.txt b/src/fortran/DFM_library/INPUT_OUTPUT_LIBRARY/missing.txt
similarity index 100%
rename from New_libraries/DFM_library/INPUT_OUTPUT_LIBRARY/missing.txt
rename to src/fortran/DFM_library/INPUT_OUTPUT_LIBRARY/missing.txt
diff --git a/New_libraries/DFM_library/INPUT_OUTPUT_LIBRARY/nomenclature.txt b/src/fortran/DFM_library/INPUT_OUTPUT_LIBRARY/nomenclature.txt
similarity index 100%
rename from New_libraries/DFM_library/INPUT_OUTPUT_LIBRARY/nomenclature.txt
rename to src/fortran/DFM_library/INPUT_OUTPUT_LIBRARY/nomenclature.txt
diff --git a/New_libraries/DFM_library/INPUT_OUTPUT_LIBRARY/open_files.f90 b/src/fortran/DFM_library/INPUT_OUTPUT_LIBRARY/open_files.f90
similarity index 100%
rename from New_libraries/DFM_library/INPUT_OUTPUT_LIBRARY/open_files.f90
rename to src/fortran/DFM_library/INPUT_OUTPUT_LIBRARY/open_files.f90
diff --git a/New_libraries/DFM_library/INPUT_OUTPUT_LIBRARY/outfiles.f90 b/src/fortran/DFM_library/INPUT_OUTPUT_LIBRARY/outfiles.f90
similarity index 73%
rename from New_libraries/DFM_library/INPUT_OUTPUT_LIBRARY/outfiles.f90
rename to src/fortran/DFM_library/INPUT_OUTPUT_LIBRARY/outfiles.f90
index 063f149..78f340f 100644
--- a/New_libraries/DFM_library/INPUT_OUTPUT_LIBRARY/outfiles.f90
+++ b/src/fortran/DFM_library/INPUT_OUTPUT_LIBRARY/outfiles.f90
@@ -6,6 +6,7 @@ MODULE OUTFILES
 !  This module contains functions/subroutines for working with 
 !    the output files
 !
+    CHARACTER (LEN = 80) ::  OUTDIR
 CONTAINS
 !
 !
@@ -59,104 +60,104 @@ CONTAINS
 !
       IMPLICIT NONE
 !
-      CHARACTER (LEN =  100)  ::  FLIST(NOFFN)
+      CHARACTER (LEN =  100)             ::  FLIST(NOFFN)
 !
 !  Filenames:
 !
-      DFFILE='Results/diel_func.dat'                        ! dielectric function file
-      PZFILE='Results/pola_func.dat'                        ! polarization function
-      SUFILE='Results/susc_func.dat'                        ! susceptibility function
-      CDFILE='Results/cond_func.dat'                        ! electrical conductivity
+      DFFILE=TRIM(OUTDIR)//'/diel_func.dat'                        ! dielectric function file
+      PZFILE=TRIM(OUTDIR)//'/pola_func.dat'                        ! polarization function
+      SUFILE=TRIM(OUTDIR)//'/susc_func.dat'                        ! susceptibility function
+      CDFILE=TRIM(OUTDIR)//'/cond_func.dat'                        ! electrical conductivity
 !
-      PDFILE='Results/plas_disp.dat'                        ! plasmon dispersion file
-      EHFILE='Results/elec_hole.dat'                        ! electron-hole dispersion file
-      E2FILE='Results/elec_hol2.dat'                        ! two electron-hole dispersion
-      CKFILE='Results/int_pot_k.dat'                        ! interaction potential (k-space)
-      CRFILE='Results/int_pot_r.dat'                        ! interaction potential (real space)
-      PKFILE='Results/plas_kine.dat'                        ! plasmon kinetic energy file
+      PDFILE=TRIM(OUTDIR)//'/plas_disp.dat'                        ! plasmon dispersion file
+      EHFILE=TRIM(OUTDIR)//'/elec_hole.dat'                        ! electron-hole dispersion file
+      E2FILE=TRIM(OUTDIR)//'/elec_hol2.dat'                        ! two electron-hole dispersion
+      CKFILE=TRIM(OUTDIR)//'/int_pot_k.dat'                        ! interaction potential (k-space)
+      CRFILE=TRIM(OUTDIR)//'/int_pot_r.dat'                        ! interaction potential (real space)
+      PKFILE=TRIM(OUTDIR)//'/plas_kine.dat'                        ! plasmon kinetic energy file
 !
-      LFFILE='Results/loca_fiel.dat'                        ! local-field correction file G(q,om)
-      IQFILE='Results/ginf_fiel.dat'                        ! G(q,inf) file
-      SFFILE='Results/stru_fact.dat'                        ! structure factor file S(q,om)
-      PCFILE='Results/pair_corr.dat'                        ! pair correlation function file
-      P2FILE='Results/pair_dist.dat'                        ! pair distribution function file
-      VXFILE='Results/vertex_fu.dat'                        ! vertex function Gamma(q,om)
-      DCFILE='Results/plas_damp.dat'                        ! plasmon damping coefficient Im[eps]/q^2 
-      MDFILE='Results/mome_dist.dat'                        ! momentum distribution
-      LDFILE='Results/landau_pa.dat'                        ! Landau parameters
-      DPFILE='Results/damp_file.dat'                        ! damping file
-      LTFILE='Results/life_time.dat'                        ! plasmon lifetime file
-      BRFILE='Results/broadenin.dat'                        ! plasmon broadening
-      PEFILE='Results/plas_ener.dat'                        ! plasmon energy
-      QCFILE='Results/qc_bounds.dat'                        ! plasmon q-bounds
-      RLFILE='Results/rela_time.dat'                        ! relaxation time
-      KSFILE='Results/screen_wv.dat'                        ! screening wave vector
-      OQFILE='Results/omega_qvf.dat'                        ! omega = q * v_F file
-      MEFILE='Results/moments_e.dat'                        ! moments of epsilon
-      MSFILE='Results/moments_s.dat'                        ! moments of S(q,omega)
-      MLFILE='Results/moments_l.dat'                        ! moments of loss function
-      MCFILE='Results/moments_c.dat'                        ! moments of conductivity
-      DEFILE='Results/deri_epsi.dat'                        ! derivative of Re[ dielectric function ]
-      ZEFILE='Results/ree0_file.dat'                        ! Re[ dielectric function ] = 0
-      SRFILE='Results/sum_rules.dat'                        ! sum rules for epsilon
-      CWFILE='Results/confin_wf.dat'                        ! confinement wave function
-      CFFILE='Results/confin_pt.dat'                        ! confinement potential
-      EMFILE='Results/effe_mass.dat'                        ! effective mass
-      MFFILE='Results/mean_path.dat'                        ! mean free path
-      SPFILE='Results/spec_func.dat'                        ! spectral function
-      SEFILE='Results/self_ener.dat'                        ! self-energy
-      SBFILE='Results/subb_ener.dat'                        ! subband energies
-      ESFILE='Results/elia_func.dat'                        ! Eliashberg function
-      GRFILE='Results/grune_par.dat'                        ! Grüneisen parameter
-      FDFILE='Results/fermi_dir.dat'                        ! Fermi-Dirac distribution
-      BEFILE='Results/bose_eins.dat'                        ! Bose-Einstein distribution
-      MXFILE='Results/maxwell_d.dat'                        ! Maxwell distribution
-      SCFILE='Results/scale_par.dat'                        ! scale parameters
-      DSFILE='Results/dens_stat.dat'                        ! density of states
-      NVFILE='Results/neva_four.dat'                        ! Nevanlinaa/memory function
-      MTFILE='Results/memo_time.dat'                        ! time domain memory function
+      LFFILE=TRIM(OUTDIR)//'/loca_fiel.dat'                        ! local-field correction file G(q,om)
+      IQFILE=TRIM(OUTDIR)//'/ginf_fiel.dat'                        ! G(q,inf) file
+      SFFILE=TRIM(OUTDIR)//'/stru_fact.dat'                        ! structure factor file S(q,om)
+      PCFILE=TRIM(OUTDIR)//'/pair_corr.dat'                        ! pair correlation function file
+      P2FILE=TRIM(OUTDIR)//'/pair_dist.dat'                        ! pair distribution function file
+      VXFILE=TRIM(OUTDIR)//'/vertex_fu.dat'                        ! vertex function Gamma(q,om)
+      DCFILE=TRIM(OUTDIR)//'/plas_damp.dat'                        ! plasmon damping coefficient Im[eps]/q^2 
+      MDFILE=TRIM(OUTDIR)//'/mome_dist.dat'                        ! momentum distribution
+      LDFILE=TRIM(OUTDIR)//'/landau_pa.dat'                        ! Landau parameters
+      DPFILE=TRIM(OUTDIR)//'/damp_file.dat'                        ! damping file
+      LTFILE=TRIM(OUTDIR)//'/life_time.dat'                        ! plasmon lifetime file
+      BRFILE=TRIM(OUTDIR)//'/broadenin.dat'                        ! plasmon broadening
+      PEFILE=TRIM(OUTDIR)//'/plas_ener.dat'                        ! plasmon energy
+      QCFILE=TRIM(OUTDIR)//'/qc_bounds.dat'                        ! plasmon q-bounds
+      RLFILE=TRIM(OUTDIR)//'/rela_time.dat'                        ! relaxation time
+      KSFILE=TRIM(OUTDIR)//'/screen_wv.dat'                        ! screening wave vector
+      OQFILE=TRIM(OUTDIR)//'/omega_qvf.dat'                        ! omega = q * v_F file
+      MEFILE=TRIM(OUTDIR)//'/moments_e.dat'                        ! moments of epsilon
+      MSFILE=TRIM(OUTDIR)//'/moments_s.dat'                        ! moments of S(q,omega)
+      MLFILE=TRIM(OUTDIR)//'/moments_l.dat'                        ! moments of loss function
+      MCFILE=TRIM(OUTDIR)//'/moments_c.dat'                        ! moments of conductivity
+      DEFILE=TRIM(OUTDIR)//'/deri_epsi.dat'                        ! derivative of Re[ dielectric function ]
+      ZEFILE=TRIM(OUTDIR)//'/ree0_file.dat'                        ! Re[ dielectric function ] = 0
+      SRFILE=TRIM(OUTDIR)//'/sum_rules.dat'                        ! sum rules for epsilon
+      CWFILE=TRIM(OUTDIR)//'/confin_wf.dat'                        ! confinement wave function
+      CFFILE=TRIM(OUTDIR)//'/confin_pt.dat'                        ! confinement potential
+      EMFILE=TRIM(OUTDIR)//'/effe_mass.dat'                        ! effective mass
+      MFFILE=TRIM(OUTDIR)//'/mean_path.dat'                        ! mean free path
+      SPFILE=TRIM(OUTDIR)//'/spec_func.dat'                        ! spectral function
+      SEFILE=TRIM(OUTDIR)//'/self_ener.dat'                        ! self-energy
+      SBFILE=TRIM(OUTDIR)//'/subb_ener.dat'                        ! subband energies
+      ESFILE=TRIM(OUTDIR)//'/elia_func.dat'                        ! Eliashberg function
+      GRFILE=TRIM(OUTDIR)//'/grune_par.dat'                        ! Grüneisen parameter
+      FDFILE=TRIM(OUTDIR)//'/fermi_dir.dat'                        ! Fermi-Dirac distribution
+      BEFILE=TRIM(OUTDIR)//'/bose_eins.dat'                        ! Bose-Einstein distribution
+      MXFILE=TRIM(OUTDIR)//'/maxwell_d.dat'                        ! Maxwell distribution
+      SCFILE=TRIM(OUTDIR)//'/scale_par.dat'                        ! scale parameters
+      DSFILE=TRIM(OUTDIR)//'/dens_stat.dat'                        ! density of states
+      NVFILE=TRIM(OUTDIR)//'/neva_four.dat'                        ! Nevanlinaa/memory function
+      MTFILE=TRIM(OUTDIR)//'/memo_time.dat'                        ! time domain memory function
 !
-      GPFILE='Results/gran_part.dat'                        ! grand partition function
-      PRFILE='Results/epressure.dat'                        ! electronic pressure
-      COFILE='Results/comp_file.dat'                        ! compressibility 
-      CPFILE='Results/chem_pote.dat'                        ! chemical potential
-      BMFILE='Results/bulk_modu.dat'                        ! bulk modulus
-      SHFILE='Results/shear_mod.dat'                        ! shear modulus
-      S0FILE='Results/zero_soun.dat'                        ! zero sound velocity
-      S1FILE='Results/firs_soun.dat'                        ! first sound velocity
-      DTFILE='Results/Debye_tmp.dat'                        ! Debye temperature
-      PSFILE='Results/para_susc.dat'                        ! Pauli paramagnetic susceptibility
-      IEFILE='Results/inter_ene.dat'                        ! internal energy
-      EIFILE='Results/exces_ene.dat'                        ! excess internal energy
-      FHFILE='Results/helm_free.dat'                        ! Helmholtz free energy
-      EYFILE='Results/entropy_f.dat'                        ! entropy
+      GPFILE=TRIM(OUTDIR)//'/gran_part.dat'                        ! grand partition function
+      PRFILE=TRIM(OUTDIR)//'/epressure.dat'                        ! electronic pressure
+      COFILE=TRIM(OUTDIR)//'/comp_file.dat'                        ! compressibility 
+      CPFILE=TRIM(OUTDIR)//'/chem_pote.dat'                        ! chemical potential
+      BMFILE=TRIM(OUTDIR)//'/bulk_modu.dat'                        ! bulk modulus
+      SHFILE=TRIM(OUTDIR)//'/shear_mod.dat'                        ! shear modulus
+      S0FILE=TRIM(OUTDIR)//'/zero_soun.dat'                        ! zero sound velocity
+      S1FILE=TRIM(OUTDIR)//'/firs_soun.dat'                        ! first sound velocity
+      DTFILE=TRIM(OUTDIR)//'/Debye_tmp.dat'                        ! Debye temperature
+      PSFILE=TRIM(OUTDIR)//'/para_susc.dat'                        ! Pauli paramagnetic susceptibility
+      IEFILE=TRIM(OUTDIR)//'/inter_ene.dat'                        ! internal energy
+      EIFILE=TRIM(OUTDIR)//'/exces_ene.dat'                        ! excess internal energy
+      FHFILE=TRIM(OUTDIR)//'/helm_free.dat'                        ! Helmholtz free energy
+      EYFILE=TRIM(OUTDIR)//'/entropy_f.dat'                        ! entropy
 !
-      EFFILE='Results/fermi_ene.dat'                        ! Fermi energy
-      KFFILE='Results/fermi_vec.dat'                        ! Fermi momentum
-      VFFILE='Results/fermi_vel.dat'                        ! Fermi velocity
-      TEFILE='Results/fermi_tmp.dat'                        ! Fermi temperature
-      DLFILE='Results/fermi_dos.dat'                        ! Fermi density of states
+      EFFILE=TRIM(OUTDIR)//'/fermi_ene.dat'                        ! Fermi energy
+      KFFILE=TRIM(OUTDIR)//'/fermi_vec.dat'                        ! Fermi momentum
+      VFFILE=TRIM(OUTDIR)//'/fermi_vel.dat'                        ! Fermi velocity
+      TEFILE=TRIM(OUTDIR)//'/fermi_tmp.dat'                        ! Fermi temperature
+      DLFILE=TRIM(OUTDIR)//'/fermi_dos.dat'                        ! Fermi density of states
 !
-      TWFILE='Results/thermal_w.dat'                        ! thermal De Broglie wavelength
-      VTFILE='Results/thermal_v.dat'                        ! thermal velocity
-      TCFILE='Results/thermal_c.dat'                        ! thermal conductivity
+      TWFILE=TRIM(OUTDIR)//'/thermal_w.dat'                        ! thermal De Broglie wavelength
+      VTFILE=TRIM(OUTDIR)//'/thermal_v.dat'                        ! thermal velocity
+      TCFILE=TRIM(OUTDIR)//'/thermal_c.dat'                        ! thermal conductivity
 !
-      EGFILE='Results/ground_st.dat'                        ! ground state energy
-      EXFILE='Results/ex_energy.dat'                        ! exchange energy
-      XCFILE='Results/xc_energy.dat'                        ! exchange correlation energy
-      ECFILE='Results/corr_ener.dat'                        ! correlation energy
-      HFFILE='Results/hf_energy.dat'                        ! Hartree-Fock energy
-      EKFILE='Results/kine_ener.dat'                        ! kinetic energy
-      EPFILE='Results/pote_ener.dat'                        ! potential energy
+      EGFILE=TRIM(OUTDIR)//'/ground_st.dat'                        ! ground state energy
+      EXFILE=TRIM(OUTDIR)//'/ex_energy.dat'                        ! exchange energy
+      XCFILE=TRIM(OUTDIR)//'/xc_energy.dat'                        ! exchange correlation energy
+      ECFILE=TRIM(OUTDIR)//'/corr_ener.dat'                        ! correlation energy
+      HFFILE=TRIM(OUTDIR)//'/hf_energy.dat'                        ! Hartree-Fock energy
+      EKFILE=TRIM(OUTDIR)//'/kine_ener.dat'                        ! kinetic energy
+      EPFILE=TRIM(OUTDIR)//'/pote_ener.dat'                        ! potential energy
 !
-      VIFILE='Results/visc_coef.dat'                        ! shear viscosity
-      DIFILE='Results/diff_coef.dat'                        ! diffusion coefficient
+      VIFILE=TRIM(OUTDIR)//'/visc_coef.dat'                        ! shear viscosity
+      DIFILE=TRIM(OUTDIR)//'/diff_coef.dat'                        ! diffusion coefficient
 !      
-      FPFILE='Results/fluct_pot.dat'                        ! fluctuation potential file
-      ELFILE='Results/ener_loss.dat'                        ! energy loss function
-      POFILE='Results/stop_powe.dat'                        ! stopping power
-      RFFILE='Results/refrac_in.dat'                        ! refractive index
-      VCFILE='Results/dyna_coul.dat'                        ! dynamic screened Coulomb potential V(q,omega)
+      FPFILE=TRIM(OUTDIR)//'/fluct_pot.dat'                        ! fluctuation potential file
+      ELFILE=TRIM(OUTDIR)//'/ener_loss.dat'                        ! energy loss function
+      POFILE=TRIM(OUTDIR)//'/stop_powe.dat'                        ! stopping power
+      RFFILE=TRIM(OUTDIR)//'/refrac_in.dat'                        ! refractive index
+      VCFILE=TRIM(OUTDIR)//'/dyna_coul.dat'                        ! dynamic screened Coulomb potential V(q,omega)
 !
 ! Corresponding fortran units
 !
@@ -425,7 +426,7 @@ CONTAINS
 !   For instance, if we want to compute the correlation energy 
 !    as a function of r_s, we will loop on the input data files 
 !    with different r_s, but all results have to be written 
-!    into the same output file 'Results/corr_ener.dat'
+!    into the same output file 'OUTDIR/corr_ener.dat'
 !
 !
 !   Author :  D. Sébilleau
diff --git a/New_libraries/DFM_library/INPUT_OUTPUT_LIBRARY/read_data.f90 b/src/fortran/DFM_library/INPUT_OUTPUT_LIBRARY/read_data.f90
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rename from New_libraries/DFM_library/INPUT_OUTPUT_LIBRARY/read_data.f90
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diff --git a/New_libraries/DFM_library/INPUT_OUTPUT_LIBRARY/store_coef.f90 b/src/fortran/DFM_library/INPUT_OUTPUT_LIBRARY/store_coef.f90
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rename from New_libraries/DFM_library/INPUT_OUTPUT_LIBRARY/store_coef.f90
rename to src/fortran/DFM_library/INPUT_OUTPUT_LIBRARY/store_coef.f90
diff --git a/New_libraries/DFM_library/INTERACTION_POTENTIALS_LIBRARY/interaction_potentials_k.f90 b/src/fortran/DFM_library/INTERACTION_POTENTIALS_LIBRARY/interaction_potentials_k.f90
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rename from New_libraries/DFM_library/INTERACTION_POTENTIALS_LIBRARY/interaction_potentials_k.f90
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diff --git a/New_libraries/DFM_library/INTERACTION_POTENTIALS_LIBRARY/interaction_potentials_r.f90 b/src/fortran/DFM_library/INTERACTION_POTENTIALS_LIBRARY/interaction_potentials_r.f90
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rename from New_libraries/DFM_library/INTERACTION_POTENTIALS_LIBRARY/interaction_potentials_r.f90
rename to src/fortran/DFM_library/INTERACTION_POTENTIALS_LIBRARY/interaction_potentials_r.f90
diff --git a/New_libraries/DFM_library/LANDAU_PARAMETERS_LIBRARY/landau.f90 b/src/fortran/DFM_library/LANDAU_PARAMETERS_LIBRARY/landau.f90
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rename from New_libraries/DFM_library/LANDAU_PARAMETERS_LIBRARY/landau.f90
rename to src/fortran/DFM_library/LANDAU_PARAMETERS_LIBRARY/landau.f90
diff --git a/New_libraries/DFM_library/LOCAL_FIELD_LIBRARY/101.pdf b/src/fortran/DFM_library/LOCAL_FIELD_LIBRARY/101.pdf
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rename to src/fortran/DFM_library/LOCAL_FIELD_LIBRARY/101.pdf
diff --git a/New_libraries/DFM_library/LOCAL_FIELD_LIBRARY/Multipair_excitations_and_sum_rules_in_i.pdf b/src/fortran/DFM_library/LOCAL_FIELD_LIBRARY/Multipair_excitations_and_sum_rules_in_i.pdf
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rename to src/fortran/DFM_library/LOCAL_FIELD_LIBRARY/Multipair_excitations_and_sum_rules_in_i.pdf
diff --git a/New_libraries/DFM_library/LOCAL_FIELD_LIBRARY/PhysRevB.10.3052.pdf b/src/fortran/DFM_library/LOCAL_FIELD_LIBRARY/PhysRevB.10.3052.pdf
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rename to src/fortran/DFM_library/LOCAL_FIELD_LIBRARY/PhysRevB.10.3052.pdf
diff --git a/New_libraries/DFM_library/LOCAL_FIELD_LIBRARY/PhysRevB.17.4512.pdf b/src/fortran/DFM_library/LOCAL_FIELD_LIBRARY/PhysRevB.17.4512.pdf
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rename from New_libraries/DFM_library/LOCAL_FIELD_LIBRARY/PhysRevB.17.4512.pdf
rename to src/fortran/DFM_library/LOCAL_FIELD_LIBRARY/PhysRevB.17.4512.pdf
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rename from New_libraries/DFM_library/LOCAL_FIELD_LIBRARY/iq_functions_1.f90
rename to src/fortran/DFM_library/LOCAL_FIELD_LIBRARY/iq_functions_1.f90
diff --git a/New_libraries/DFM_library/LOCAL_FIELD_LIBRARY/iq_functions_2.f90 b/src/fortran/DFM_library/LOCAL_FIELD_LIBRARY/iq_functions_2.f90
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diff --git a/New_libraries/DFM_library/MEMORY_FUNCTIONS_LIBRARY/memory2_functions.f90 b/src/fortran/DFM_library/MEMORY_FUNCTIONS_LIBRARY/memory2_functions.f90
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rename from New_libraries/DFM_library/MEMORY_FUNCTIONS_LIBRARY/memory_functions.f90
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diff --git a/New_libraries/DFM_library/PAIR_CORRELATION_LIBRARY/PhysRevB.64.155102.pdf b/src/fortran/DFM_library/PAIR_CORRELATION_LIBRARY/PhysRevB.64.155102.pdf
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rename from New_libraries/Data/epsilon.dat
rename to src/fortran/Data/epsilon.dat
diff --git a/New_libraries/Data/replace.sh b/src/fortran/Data/replace.sh
similarity index 100%
rename from New_libraries/Data/replace.sh
rename to src/fortran/Data/replace.sh
diff --git a/src/fortran/_dfm.f90 b/src/fortran/_dfm.f90
new file mode 100644
index 0000000..e71b065
--- /dev/null
+++ b/src/fortran/_dfm.f90
@@ -0,0 +1,345 @@
+!
+!=======================================================================
+!
+SUBROUTINE EPSILON(MYINFILE, MYOUTDIR)
+!
+!  This program computes model dielectric functions for many type
+!    of materials. These dielectric functions are essentially based
+!    on the Fermi liquid theory.
+!
+!  Several other physical quantities, based on the
+!    dielectric function can also be computed, namely:
+!
+!                 * the loss function
+!                 * the EELS cross-section
+!                 * the plasmon fluctuation potential
+!                 * the stopping power
+!                 * the optical properties
+!
+!
+!  Lead developer: Didier Sébilleau
+!
+!  Co-developers : Aditi Mandal, Sylvain Tricot
+!
+!
+!
+!  Main notations :
+!
+!       * X : dimensionless factor   --> X = q / (2 * k_F)
+!
+!       * Y : dimensionless factor   --> Y = q / k_F
+!
+!       * Z : dimensionless factor   --> Z = omega / omega_q     = V / (4 * X * X)
+!
+!       * U : dimensionless factor   --> U = omega / (q * v_F)   = X * Z   = V / (4 * X)
+!
+!       * V : dimensionless factor   --> V = omega / omega_{k_F} = Z * Y^2 = 4 U * X
+!
+!
+!
+!
+!                                           Last modified :  6 Aug 2021
+!
+!
+      USE ACCURACY_REAL
+      USE DIMENSION_CODE,   ONLY : NSIZE
+!
+      USE SF_VALUES,        ONLY : SQO_TYPE
+!
+      USE REAL_NUMBERS,     ONLY : ZERO,ONE,HALF,SMALL
+      USE MATERIAL_PROP,    ONLY : RS,DMN
+      USE EXT_FIELDS,       ONLY : H
+!
+      USE Q_GRID
+!
+      USE FERMI_VALUES
+      USE FERMI_VALUES_M
+      USE PLASMON_ENE
+      USE PLASMA_SCALE
+      USE CALC_ASYMPT
+!
+      USE PRINT_CALC_TYPE
+      USE PRINT_HEADERS
+      USE PRINT_FERMI
+      USE PRINT_PLASMONS
+      USE PRINT_ASYMPTOTIC
+      USE PRINT_SCALE_PARAM
+      USE PRINT_MAT_LENGTHS
+      USE PRINT_THERMAL
+      USE PRINT_THERMODYNAMICS
+      USE PRINT_ENERGIES_EL
+!
+      USE DAMPING_COEF
+      USE PLASMON_DISPERSION
+!
+      USE CALL_CALC_1
+      USE CALL_CALC_2
+      USE CALL_CALC_3
+      USE CALL_CALC_5
+      USE CALL_CALC_7
+      USE CALL_CALC_9
+      USE CALL_CALC_P
+!
+      USE TEST_INTEGRALS_2
+      USE TEST_INTEGRALS_3
+      USE TEST_INTEGRALS_8
+      USE TEST_INT_HUBBARD
+!
+      USE RE_EPS_0_TREATMENT
+!
+      USE INPUT_DATA
+!
+      USE OUT_VALUES_10
+!
+      USE OUT_CALC
+!
+      USE CHANGE_FILENAMES
+!
+      USE OUTFILES
+      USE OPEN_OUTFILES
+      USE CLOSE_OUTFILES
+!
+      IMPLICIT NONE
+!
+      INTEGER               ::  N_IF,JF
+      INTEGER               ::  IQ,IE
+!
+      REAL (WP)             ::  Q,X
+      REAL (WP)             ::  EPSR(NSIZE),EPSI(NSIZE),EN(NSIZE)
+!
+      CHARACTER (LEN = 100) ::  INPDATA(999)
+      CHARACTER (LEN = 100) ::  LOGFILE(999)
+!
+      CHARACTER (LEN = 100) ::  MYINFILE
+      CHARACTER (LEN =  80) ::  MYOUTDIR
+!
+      OUTDIR = MYOUTDIR
+      CALL SYSTEM('mkdir -p '//TRIM(OUTDIR))
+!
+!  Loop on the input data files
+!
+!      N_IF = 11
+      N_IF = 1
+!      READ(*,15) N_IF                                                !
+!      DO JF = 1,N_IF                                                 !
+!        READ(*,25) INPDATA(JF)                                       !
+!      END DO                                                         !
+      INPDATA(1) = TRIM(MYINFILE)
+!      INPDATA(1) = 'Data/epsilon.dat'
+!      INPDATA(1) = 'Data/epsilon_00.dat'
+!      INPDATA(2) = 'Data/epsilon_01.dat'
+!      INPDATA(3) = 'Data/epsilon_02.dat'
+!      INPDATA(4) = 'Data/epsilon_03.dat'
+!      INPDATA(5) = 'Data/epsilon_04.dat'
+!      INPDATA(6) = 'Data/epsilon_05.dat'
+!      INPDATA(7) = 'Data/epsilon_06.dat'
+!      INPDATA(8) = 'Data/epsilon_07.dat'
+!      INPDATA(9) = 'Data/epsilon_08.dat'
+!      INPDATA(10) = 'Data/epsilon_09.dat'
+!      INPDATA(11) = 'Data/epsilon_10.dat'
+!
+!
+!  Name of the corresponding log files
+!
+      CALL LOGFILE_NAMES(N_IF,LOGFILE)                              !
+!
+      DO JF = 1,N_IF                                                ! start loop on files
+!
+!  Initialization of the arrays
+!
+        DO IE=1,NSIZE                                               !
+          EN(IE)   = ZERO                                           !
+          EPSR(IE) = ZERO                                           !
+          EPSI(IE) = ZERO                                           !
+        END DO                                                      !
+!
+!  Opening input/log data files
+!
+        OPEN(UNIT=5,FILE=TRIM(INPDATA(JF)),STATUS='OLD')            !
+!        OPEN(UNIT=6,FILE=TRIM(LOGFILE(JF)),STATUS='UNKNOWN')        !
+!
+!  Printing the headers
+!
+        CALL PRINT_ASCII                                            !
+!
+!  Reading the input data file
+!
+        CALL READ_DATA                                              !
+!
+        IF(SQO_TYPE == 'UTI') THEN                                  !
+          OPEN(UNIT = 1, FILE = TRIM(OUTDIR)//'/utic_para.dat',   & !
+                         STATUS = 'unknown')                        !
+        END IF                                                      !
+!
+!  Opening result files
+!
+        CALL OPEN_OUTPUT_FILES(N_IF,JF)                             !
+!
+!  Post-processing:
+!
+        IF(PL_DISP == '  EXACT') THEN                               !
+          I_PP = I_FP + I_PD                                        !
+        ELSE                                                        !
+          I_PP = I_FP                                               !
+        END IF                                                      !
+!
+!  Printing the information on the calculations to be performed
+!
+!        CALL PRINT_CALC_INFO                                        !
+!
+!  Computation of the Fermi values and storage
+!
+        WRITE(6,10)                                                 !
+!
+        IF(H < SMALL) THEN                                          !
+          CALL CALC_FERMI(DMN,RS)                                   !
+          CALL PRINT_FERMI_SI                                       !
+        ELSE                                                        !
+          CALL CALC_FERMI_M(DMN,RS)                                 !
+          CALL PRINT_FERMI_SI_M                                     !
+        END IF                                                      !
+!
+!  Test of the integrals
+!
+        IF(I_TI /= 0) THEN                                          !
+          IF(I_TI ==  2) CALL CALC_TEST_INT_2                       !
+          IF(I_TI ==  3) CALL CALC_TEST_INT_3                       !
+          IF(I_TI ==  8) CALL CALC_TEST_INT_8                       !
+          IF(I_TI == 10) CALL CALC_TEST_HUBBARD                     !
+        END IF                                                      !
+!
+!  Computation of the plasmon properties and storage
+!
+        CALL CALC_PLASMON_ENE                                       !
+        CALL CALC_PLASMA_SCALE                                      !
+!
+!  Computation of the asymptotic values and storage
+!
+!        CALL CALC_ASYMPT_VALUES                                     !
+!
+!  Selective printing of physical properties (log file)
+!
+        IF(I_WR == 1) THEN                                          !
+!
+!  Printing the plasma properties
+!
+          WRITE(6,10)                                               !
+          CALL PRINT_PLASMA                                         !
+!
+!  Printing the asymptotic values
+!
+          WRITE(6,10)                                               !
+          CALL PRINT_ASYMPT_VALUES                                  !
+!
+!  Printing the scale parameters
+!
+          WRITE(6,10)                                               !
+          CALL PRINT_SCALE_PARAMETERS                               !
+!
+!  Printing the material's characteristic lengths
+!
+          WRITE(6,10)                                               !
+          CALL PRINT_CHAR_LENGTHS                                   !
+!
+!  Printing the thermal properties
+!
+          WRITE(6,10)                                               !
+          CALL PRINT_THERMAL_PROP                                   !
+!
+!  Printing the thermodynamics properties
+!
+          WRITE(6,10)                                               !
+          CALL PRINT_THERMODYNAMICS_PROP                            !
+!
+!  Printing the energies at q = 0
+!
+          WRITE(6,10)                                               !
+          CALL PRINT_ENERGIES(ZERO,0,ZERO,ONE)                      !
+!
+        END IF                                                      !
+!
+!  Calling calculator 5 (Fermi properties)
+!
+        IF(I_C5 > 0) CALL USE_CALC_5                                !
+!
+!  Starting the loop on q
+!    (the loop on energy is inside the calculators)
+!
+!
+!..........  Loop on plasmon momentum Q  ..........
+!
+        DO IQ = 1,N_Q                                               !
+!
+          Q = Q_MIN + FLOAT(IQ - 1) * Q_STEP                        ! Q = q/k_F
+!
+          X = HALF * Q                                              ! X = q/(2k_f)
+!
+!  Computing and printing the damping (if any)
+!
+          CALL CALC_DAMPING(IQ,X)
+!
+!  Calling calculator 1 (eps, pi, chi, sigma)
+!
+          IF(I_C1 > 0) CALL USE_CALC_1(X,EN,EPSR,EPSI)              !
+!
+!  Calling calculator 2
+!
+          IF(I_C2 > 0) CALL USE_CALC_2(IQ,X)                        !
+!
+!  Calling calculator 3
+!
+          IF(I_C3 > 0) CALL USE_CALC_3(IQ,X)                        !
+!
+!  Calling calculator 9
+!
+          IF(I_C9 > 0) CALL USE_CALC_9(X)                           !
+!
+!  Calling test calculator
+!
+!          CALL CALC_TEST(IQ,X)
+!
+!..........  End of loop on plasmon momentum Q  ..........
+!
+        END DO                                                      !
+!
+!  Calling calculator 7 (Energies)
+!
+        IF(I_C7 > 0) CALL USE_CALC_7                                !
+!
+!  Post-processing whenever requested
+!
+        IF(I_PP > 0) CALL USE_CALC_P                                !
+!
+        IF(I_ZE == 1) THEN                                          !
+          CALL REORDER_EPS0_PRINT                                   !
+        END IF                                                      !
+!
+!  Closing input/log data files
+!
+        CLOSE(5)                                                    !
+!        CLOSE(6)                                                    !
+!
+        IF(SQO_TYPE == 'UTI') THEN                                  !
+          CLOSE(1)                                                  !
+        END IF                                                      !
+
+!
+!  Closing the indexed result files
+!
+        CALL CLOSE_OUTPUT_FILES(0)                                  !
+!
+!  End of input data files loop
+!
+      END DO                                                        !
+!
+!  Closing the other result files
+!
+      CALL CLOSE_OUTPUT_FILES(1)                                    !
+!
+!  Formats:
+!
+  10  FORMAT('     ')
+!  15  FORMAT(I3)
+!  25  FORMAT(A50)
+!
+END SUBROUTINE
diff --git a/New_libraries/epsilon.f90 b/src/fortran/epsilon.f90
similarity index 100%
rename from New_libraries/epsilon.f90
rename to src/fortran/epsilon.f90
diff --git a/src/python/MANIFEST.in b/src/python/MANIFEST.in
new file mode 100644
index 0000000..0192b89
--- /dev/null
+++ b/src/python/MANIFEST.in
@@ -0,0 +1,2 @@
+recursive-include msspec_dfm *.so
+include pip.freeze
diff --git a/src/python/man/inputfile.spec b/src/python/man/inputfile.spec
new file mode 100644
index 0000000..8bd95c8
--- /dev/null
+++ b/src/python/man/inputfile.spec
@@ -0,0 +1,2590 @@
+.SH INPUT FILE FORMAT
+
+The input file is formatted as follows:
+
+ ******************************************************************************
+ *                     MsSpec DIELECTRIC FUNCTION MODULE                      *
+ ******************************************************************************
+ *=======+=========+=========+=========+=========+============================*
+ *                           GENERAL PARAMETERS :                             *
+ *=======+=========+=========+=========+=========+============================*
+ *                        (q,omega,r)  :                                      *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *      0.010     4.000   1000                   Q_MIN,Q_MAX,N_Q              * in units of k_F
+ *      0.010     4.000   2000                   E_MIN,E_MAX,N_E              * in units of E_F
+ *      0.010     4.000   2000                   R_MIN,R_MAX,N_R              * in units of 1/k_F
+ *-------+---------+---------+---------+---------+----------------------------*
+ *                        Material's properties :                             *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *      2.079     1.000  SCHRO        1.000      RS,MSOM,MAT_TYP,EPS_B        *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *                        External fields :                                   *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *      1.00      0.000     0.000     NO         T,E,H,FLD                    *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *                        System's dimension :                                *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *      3D                                       DIM                          *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *                        Confinement :                                       *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *      0.000     0.000     0.00 NO-CONF         R0,L,OM0,CONFIN              *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *                        Multilayer structure :                              *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *      0.000     0.000     0.00      0.00       DL,D1,N_DEP,N_INV            *   --- EPS_1 ---
+ *    NONE       12.000    12.000                H_TYPE,EPS_1,EPS_2           *       EPS_2
+ *-------+---------+---------+---------+---------+----------------------------*   --- EPS_1 ---
+ *                        Units :                                             *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *     SIU        SI                             UNIT,UNIK                    *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *                        Screening :                                         *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *      NO                                       SC_TYPE                      *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *                        Plasma type :                                       *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *     OCP        1.000     0.000                PL_TYPE,ZION,ZION2           *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *                        Calculation type :                                  *
+ *-------+---------+---------+---------+---------+----------------------------*
+ * QUANTUM                                       CAL_TYPE                     *
+ *=======+=========+=========+=========+=========+============================*
+ *                        DIELECTRIC FUNCTION :                               *
+ *=======+=========+=========+=========+=========+============================*
+ * DYNAMIC      LONG      NEV3         0         ESTDY,EPS_T,D_FUNC,I_T       *
+ *    STA2      COCO        0.500     0.600      NEV_TYPE,MEM_TYPE,ALPHA,BETA *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *                        Analytical plasmon dispersion :                     *
+ *-------+---------+---------+---------+---------+----------------------------*
+ * RP2_MOD                                       PL_DISP                      *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *                        Local-field corrections                             *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *  STATIC      ICUT       IKP                   GSTDY,GQ_TYPE,IQ_TYPE        *
+ *    NONE      NONE        EC        EC         LANDAU,GQO_TYPE,G0_TYPE,GI_TYPE*
+ *-------+---------+---------+---------+---------+----------------------------*
+ *                        Damping :                                           *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *    RELA      NONE       EX1                   DAMPING,LT_TYPE,RT_TYPE      *
+ *    NONE      EXTE      NONE                   DR_TYPE,DC_TYPE,VI_TYPE      *
+ *    NONE      NONE      NONE                   EE_TYPE,EP_TYPE,EI_TYPE      *
+ *    NONE      NONE      LORE        1.250      IP_TYPE,PD_TYPE,QD_TYPE,ZETA *
+ *      0.500  FEMTO       50.00                 D_VALUE_1,POWER_1,EK         *
+ *      5.000  FEMTO        0.80                 D_VALUE_2,POWER_2,PCT        *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *                        Electron-electron interaction :                     *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *   COULO        2.590   470.000     1.500      INT_POT,S,EPS,DELTA          *
+ *      1.500     5.000      7        28         RC,ALF,M,N                   *
+ *      1.000     1.000     1.000     1.000      A1,A2,A3,A4                  *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *                        Electron-phonon interaction :                       *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *   1500.000  1500.000                          EP_C,DEBYE_T                 *
+ *     12.000     0.000     0.000                NA,MA,RA                     *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *                        Electron-impurity interaction :                     *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *      0.000     0.000                          NI,EI_C                      *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *                        Classical fluid parameters :                        *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *     SHS       HSM       HSP                   CF_TYPE,PF_TYPE,SL_TYPE      *
+ *=======+=========+=========+=========+=========+============================*
+ *                        STRUCTURE FACTOR :                                  *
+ *=======+=========+=========+=========+=========+============================*
+ * DYNAMIC       PKA       EPS                   SSTDY,SQ_TYPE,SQO_TYPE       *
+ *=======+=========+=========+=========+=========+============================*
+ *                        PAIR CORRELATION FUNCTION :                         *
+ *=======+=========+=========+=========+=========+============================*
+ *     SHA      KIMB                             GR_TYPE,GR0_MODE             *
+ *=======+=========+=========+=========+=========+============================*
+ *                        PAIR DISTRIBUTION FUNCTION :                        *
+ *=======+=========+=========+=========+=========+============================*
+ *     CEG                                       RH_TYPE                      *
+ *=======+=========+=========+=========+=========+============================*
+ *                        SPECTRAL FUNCTION :                                 *
+ *=======+=========+=========+=========+=========+============================*
+ *    NAIC                                       SPF_TYPE                     *
+ *=======+=========+=========+=========+=========+============================*
+ *                        ENERGY CALCULATIONS :                               *
+ *=======+=========+=========+=========+=========+============================*
+ *  GGSB_G        NO        NO                   EC_TYPE,FXC_TYPE,EXC_TYPE    *
+ *     HEG       HEG                             EX_TYPE,EK_TYPE              *
+ *=======+=========+=========+=========+=========+============================*
+ *                        SPIN POLARIZATION :                                 *
+ *=======+=========+=========+=========+=========+============================*
+ *       1        0.000                          IMODE,XI                     *
+ *=======+=========+=========+=========+=========+============================*
+ *                        THERMODYNAMIC PROPERTIES :                          *
+ *=======+=========+=========+=========+=========+============================*
+ *    QUAN       IK0                             TH_PROP,GP_TYPE              *
+ *=======+=========+=========+=========+=========+============================*
+ *                        ELECTRON MEAN FREE PATH :                           *
+ *=======+=========+=========+=========+=========+============================*
+ *    150.00    200.00                           EK_INI,EK_FIN                *
+ *=======+=========+=========+=========+=========+============================*
+ *                        CALCULATION OF MOMENTS :                            *
+ *=======+=========+=========+=========+=========+============================*
+ *       1       SQO                             N_M,M_TYPE                   *
+ *=======+=========+=========+=========+=========+============================*
+ *                        INCOMING ION BEAM :                                 *
+ *=======+=========+=========+=========+=========+============================*
+ *      1.00  15000.00                            Z_BEAM,EK_BEAM              *
+ *=======+=========+=========+=========+=========+============================*
+ *                        OUTPUT CALCULATIONS/PRINTING :                      *
+ *=======+=========+=========+=========+=========+============================*
+ *       1         0         0         0         I_DF,I_PZ,I_SU,I_CD          *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *       1         1         0         0         I_PD,I_EH,I_E2,I_CK          *
+ *       0         0                             I_CR,I_PK                    *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *       0         0         0         0         I_LF,I_IQ,I_SF,I_PC          *
+ *       0         0         0         0         I_P2,I_VX,I_DC,I_MD          *
+ *       0         0         0         0         I_LD,I_DP,I_LT,I_BR          *
+ *       0         0         0         0         I_PE,I_QC,I_RL,I_KS          *
+ *       0         0         0         0         I_OQ,I_ME,I_MS,I_ML          *
+ *       0         0         0         0         I_MC,I_DE,I_ZE,I_SR          *
+ *       0         0         0         0         I_CW,I_CF,I_EM,I_MF          *
+ *       0         0         0         0         I_SP,I_SE,I_SB,I_ES          *
+ *       0         0         0         0         I_GR,I_FD,I_BE,I_MX          *
+ *       0         0         0         0         I_SC,I_DS,I_NV,I_MT          *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *       0         0         0         0         I_GP,I_PR,I_CO,I_CP          *
+ *       0         0         0         0         I_BM,I_SH,I_S0,I_S1          *
+ *       0         0         0         0         I_DT,I_PS,I_IE,I_EI          *
+ *       0         0                             I_FH,I_EY                    *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *       1         1         1         1         I_EF,I_KF,I_VF,I_TE          *
+ *       1                                       I_DL                         *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *       0         0         0                   I_TW,I_VT,I_TC               *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *       0         0         0         0         I_EG,I_EX,I_XC,I_EC          *
+ *       0         0         0                   I_HF,I_EK,I_EP               *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *       0         0                             I_VI,I_DI                    *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *       0         0         0         0         I_FP,I_EL,I_PO,I_RF          *
+ *       0                                       I_VC                         *
+ *-------+---------+---------+---------+---------+----------------------------*
+ *       0         2         0                   I_FN,I_WR,I_TI               *
+ *=======+=========+=========+=========+=========+============================*
+ *                                 INPUT FILES :                              *
+ *----------------------------------------------------------------------------*
+ *           NAME                    UNIT                TYPE                 *
+ *=======+======================+======+=========+============================*
+ *       epsilon.dat                   5         INPUT DATA FILE              *
+ *=======+======================+======+=========+============================*
+ *                                OUTPUT FILES :                              *
+ *----------------------------------------------------------------------------*
+ *           NAME                    UNIT                TYPE                 *
+ *=======+======================+======+=========+============================*
+ *       epsilon.lis                   6         CHECK FILE                   *
+ *=======+======================+======+=========+============================*
+ *                             END OF THE DATA FILE                           *
+ *============================================================================*
+ ******************************************************************************
+
+
+.SH DESCRIPTION OF THE CALCULATION PARAMETERS
+
+ *=======+=========+=========+=========+=========+===========================*
+ *                           GENERAL PARAMETERS :                            *
+ *=======+=========+=========+=========+=========+===========================*
+
+       * Q_MIN    : minimum value of q (in units of k_F)
+       * Q_MAX    : maximum value of q (in units of k_F)
+       * N_Q      : number of q-points
+
+       * E_MIN    : minimum value of energy (in units of E_F)
+       * E_MAX    : maximum value of energy (in units of E_F)
+       * N_E      : number of E-points
+
+       * R_MIN    : minimum value of distance r (in units of 1/k_F)
+       * R_MAX    : maximum value of distance r (in units of 1/k_F))
+       * N_R      : number of r-points
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+       * RS       : average distance between 2 electrons (in units of a0)
+                                            ~
+       * MSOM     : m*/m (for semiconductors)
+                                            ~
+       * MAT_TYP  : type of material
+                       MAT_TYPE  = 'SCHRO' standard solid
+                       MAT_TYPE  = 'DIRAC' massless Fermions
+                       MAT_TYPE  = 'NEUTR' neutral classical liquid
+                       MAT_TYPE  = 'POLAR' polar classical liquid
+                                            ~
+       * EPS_B    : material's dielectric constant
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+       * T        : temperature (in SI)
+                                            ~
+       * E        : external electric field (in SI)
+                                            ~
+       * H        : external magnetic field (in SI)
+                                            ~
+       * FLD      : strength of the magnetic field
+                       FLD = 'NO' no field
+                       FLD = 'WF' weak field
+                       FLD = 'IF' intermediate field
+                       FLD = 'LF' large field
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+       * DIM      : dimension of the system
+                       DIM  = '3D'
+                       DIM  = '2D'
+                       DIM  = '1D'
+                       DIM  = 'Q0'  quasi-0D
+                       DIM  = 'Q1'  quasi-1D
+                       DIM  = 'Q2'  quasi-2D
+                       DIM  = 'BL'  bilayer
+                       DIM  = 'ML'  multilayer
+                       DIM  = 'ML'  multilayer
+
+                                            ~
+
+       * R0       : wire radius
+                                            ~
+       * L        : length of quantum well
+                                            ~
+       * OM0      : frequency of the confinement potential (SI)
+                                            ~
+       * CONFIN   : type of confinement
+                       CONFIN = 'NO-CONF' no confinement
+                       CONFIN = 'DSEPLAY' layer within a stacking of layers
+                       CONFIN = 'CC-1111' cylindrical within subband 1
+                       CONFIN = 'CC-1122' cylindrical between subbands 1 and 2
+                       CONFIN = 'CC-1221' cylindrical between subbands 1 and 2
+                       CONFIN = 'CC-2222' cylindrical within subband 2
+                       CONFIN = 'HC-1111' harmonic within subband 1
+                       CONFIN = 'HC-1122' harmonic between subbands 1 and 2
+                       CONFIN = 'HC-1221' harmonic between subbands 1 and 2
+                       CONFIN = 'HC-2222' harmonic within subband 2
+                       CONFIN = 'INVLAYE' inversion layer in semiconductor
+                       CONFIN = 'IQWE_LB' square well with an infinite barrier
+                       CONFIN = 'PC1_QWI' parabolic
+                       CONFIN = 'PC2_QWI' parabolic
+                       CONFIN = 'SOFTCOR' soft-core potential
+                       CONFIN = 'SWC_QWI' square well with an infinite barrier
+
+                                            ~
+
+       * DL       : interlayer distance
+                                            ~
+       * D1       : distance between the two layers in the unit cell
+                                            ~
+       * N_DEP    : electron concentration in depletion layer (SI)
+                                            ~
+       * N_INV    : electron concentration in inversion layer (SI)
+
+                                            ~
+
+       * H_TYPE   : heterostructure type
+                       H_TYPE  =  'SSL1' semiconductor superlattice of type I
+                       H_TYPE  =  'SSL2' semiconductor superlattice of type II
+                       H_TYPE  =  'BILA' bilayer
+                       H_TYPE  =  'MLA1' multilayer with with one layer  / unit cell
+                       H_TYPE  =  'MLA2' multilayer with with two layers / unit cell
+                                            ~
+       * EPS_1    : background/layer dielectric constant
+                                            ~
+       * EPS_2    : interlayer dielectric constant
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+       * UNIT     : system unit
+                       UNIT  = 'SIU' international system
+                       UNIT  = 'CGS' CGS system
+                       UNIT  = 'ATU' atomic units
+
+       * UNIK     : K unit
+                       UNIK  = 'SI' international system
+                       UNIK  = 'AU' atomic units
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+       * SC_TYPE  : type of screeening
+                       SC_TYPE  = 'NO' no screening
+                       SC_TYPE  = 'DH' Debye-Hückel
+                       SC_TYPE  = 'IS' Tago-Utsumi-Ichimaru
+                       SC_TYPE  = 'KL' Kleinman
+                       SC_TYPE  = 'OC' one-component plasma
+                       SC_TYPE  = 'RP' RPA
+                       SC_TYPE  = 'ST' Streitenberger
+                       SC_TYPE  = 'TF' Thomas-Fermi
+                       SC_TYPE  = 'UI' Utsumi-Ichimaru
+                       SC_TYPE  = 'YT' Yasuhara-Takada
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+       * PL_TYPE  : type of plasma considered
+                      PL_TYPE  = 'OCP' --> one-component plasma (~ electron gas)
+                      PL_TYPE  = 'DCP' --> two-component plasma
+
+       * ZION     : atomic number of (first) ion
+
+       * ZION2    : atomic number of second ion
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+       * CAL_TYPE : type of calculation
+                      CAL_TYPE  = 'QUANTUM' --> quantum fluid
+                      CAL_TYPE  = 'CLASSIC' --> classical fluid
+
+ *=======+=========+=========+=========+=========+===========================*
+ *                        DIELECTRIC FUNCTION :                              *
+ *=======+=========+=========+=========+=========+===========================*
+
+
+       * ESTDY    : static vs dynamic dielectric function
+                      STDY = ' STATIC'
+                      STDY = 'DYNAMIC'
+
+       * EPS_T    : type of dielcectric function
+                       EPS_T  = 'LONG' longitudinal --> D_FUNCL
+                       EPS_T  = 'TRAN' transverse   --> D_FUNCT
+
+       * D_FUNC   : model of dielectric function :
+
+                    1) Static:
+
+                       ---> longitudinal:
+
+                      D_FUNCL = 'LRPA' random phase approximation          (3D,2D,1D)
+                      D_FUNCL = 'THFE' Thomas-Fermi approximation          (3D,2D,1D)
+
+                    2) Dynamic:
+
+                       ---> transverse:
+
+                      D_FUNCT = 'RPA1' random phase approximation          (3D,2D)
+                      D_FUNCT = 'RPA2' random phase approximation          (3D)
+                      D_FUNCT = 'LVLA' linearized Vlasov                   (3D)
+                      D_FUNCT = 'MER1' Mermin                              (3D)
+                      D_FUNCT = 'BLTZ' Boltzmann                           (3D)
+
+                       ---> longitudinal:
+
+                      D_FUNCL = 'ARBR' Arista-Brandt 1                     <-- T-dependent
+                      D_FUNCL = 'ATAS' Atwal-Ashcroft                      <-- T-dependent
+                      D_FUNCL = 'BLZ1' Boltzmann
+                      D_FUNCL = 'BLZ2' damped Boltzmann
+                      D_FUNCL = 'DACA' Arista-Brandt 2                     <-- T-dependent
+                      D_FUNCL = 'GOTZ' Götze memory function
+                      D_FUNCL = 'HEAP' Hertel-Appel
+                      D_FUNCL = 'HAFO' Hartree-Fock
+                      D_FUNCL = 'HUCO' Hu-O'Connell                        <-- damping (3D,2D,Q1)
+                      D_FUNCL = 'HYDR' hydrodynamic                        <-- damping
+                      D_FUNCL = 'KLEI' Kleinman                            <-- T-dependent
+                      D_FUNCL = 'KLKD' Klimontovich-Kraeft                 <-- T-dependent
+                      D_FUNCL = 'KLKN' Klimontovich-Kraeft                 <-- T-dependent
+                      D_FUNCL = 'LAND' Landau parameters-based
+                      D_FUNCL = 'LVL1' linearized Vlasov (weak coupling)   <-- T-dependent
+                      D_FUNCL = 'LVL2' linearized Vlasov (strong coupling) <-- T-dependent
+                      D_FUNCL = 'MEM2' Two-moment memory function          <-- T-dependent
+                      D_FUNCL = 'MEM3' Three-moment memory function        <-- T-dependent
+                      D_FUNCL = 'MEM4' Four-moment memory function         <-- T-dependent
+                      D_FUNCL = 'MER1' Mermin 1                            <-- damping (3D,2D)
+                      D_FUNCL = 'MER2' Lindhard-Mermin                     <-- T-dependent
+                      D_FUNCL = 'MER+' Mermin with Local Field Corrections <-- damping
+                      D_FUNCL = 'MSAP' mean spherical approximation
+                      D_FUNCL = 'NEV2' Two-moment Nevanlinna               <-- T-dependent
+                      D_FUNCL = 'NEV3' Three-moment Nevanlinna             <-- T-dependent
+                      D_FUNCL = 'NEV4' Four-moment Nevanlinna              <-- T-dependent
+                      D_FUNCL = 'PLPO' plasmon pole
+                      D_FUNCL = 'RDF1' Altshuler et al                     <-- damping
+                      D_FUNCL = 'RDF2' Altshuler et al                     <-- damping
+                      D_FUNCL = 'RPA1' RPA
+                      D_FUNCL = 'RPA2' RPA                                 <-- T-dependent
+                      D_FUNCL = 'RPA+' RPA + static local field corrections
+                      D_FUNCL = 'RPA3' random phase approximation          <-- magnetic field (2D)
+                      D_FUNCL = 'SO2E' computed from S(q,omega)
+                      D_FUNCL = 'UTIC' Utsumi-Ichimaru                     <-- T-dependent
+                      D_FUNCL = 'VLFP' Vlasov-Fokker-Planck                <-- damping
+
+       * I_T      :  way to incorporate temperature dependence
+                      I_T  = 0  --> no temperature (T = 0)
+                      I_T  = 1  --> analytical models used
+                      I_T  = 2  --> temperature convolution
+
+                                            ~
+
+       * NEV_TYPE : type of Nevalinna function used (only for D_FUNCL = 'NEVn')
+                      NEV_TYPE  = 'NONE' --> no function
+                      NEV_TYPE  = 'RELA' --> static value h(q) = i / tau
+                      NEV_TYPE  = 'STA1' --> static value h(q)
+                      NEV_TYPE  = 'STA2' --> static value h(q)
+                      NEV_TYPE  = 'STA3' --> static value h(q)
+                      NEV_TYPE  = 'STA4' --> static value h(q)
+                      NEV_TYPE  = 'PEEL' --> Perel'-Eliashberg function
+                      NEV_TYPE  = 'PE76' --> Perel'-Eliashberg by Arkhipov et al
+                      NEV_TYPE  = 'CCP1' -->
+                      NEV_TYPE  = 'CCP2' -->
+                      NEV_TYPE  = 'CCP3' -->
+                      NEV_TYPE  = 'CCP4' -->
+                      NEV_TYPE  = 'PST1' -->
+
+       * MEM_TYPE : type of memory function used (only for D_FUNCL = 'MEMn')
+                      MEM_TYPE  = 'NONE' --> no function
+                      MEM_TYPE  = 'DELT' --> delta function
+                      MEM_TYPE  = 'DGAU' --> double Gaussian functions
+                      MEM_TYPE  = 'EXPO' --> exponential function
+                      MEM_TYPE  = 'GAUS' --> Gaussian function
+                      MEM_TYPE  = 'LORE' --> Lorentzian function
+                      MEM_TYPE  = 'SINC' --> sinc function
+                      MEM_TYPE  = 'BES0' --> J_0(t) function
+                      MEM_TYPE  = 'BES1' --> J_1(t)/t function
+                      MEM_TYPE  = 'SEC2' --> sech^2(t) function
+                      MEM_TYPE  = 'COCO' --> Cole-Cole function
+                      MEM_TYPE  = 'CODA' --> Cole-Davidson function
+                      MEM_TYPE  = 'HANE' --> Habriliak-Negami function
+                      MEM_TYPE  = 'RAYI' --> Raganathan-Yip function
+                      MEM_TYPE  = 'LIHY' --> linearized hydrodynamic function
+
+       * ALPHA    : value of the Habriliak-Negami first parameter  (in ]0,1])
+
+       * BETA     : value of the Habriliak-Negami second parameter (in ]0,1])
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+       * PL_DISP   : method used to compute the plasmon dispersion (3D real case)
+                       PL_DISP = 'HYDRODY' hydrodynamic model
+                       PL_DISP = 'RP1_MOD' RPA model up to q^2
+                       PL_DISP = 'RP2_MOD' RPA model up to q^4
+                       PL_DISP = 'GOA_MOD' Gorobchenko model
+                       PL_DISP = 'HER_APP' Hertel-Appel model     <-- T-dependent
+                       PL_DISP = 'HUBBARD' Hubbard model
+                       PL_DISP = 'ELASTIC' elastic model
+                       PL_DISP = '  EXACT' computed from the dielectric function
+                       PL_DISP = 'SGBBN_M' SGBBN model
+                       PL_DISP = 'AL0_MOD' gamma_0   limit
+                       PL_DISP = 'ALI_MOD' gamma_inf limit
+                       PL_DISP = 'NOP_MOD' Nozières-Pines model
+                       PL_DISP = 'UTI_MOD' Utsumi-Ichimaru model
+                       PL_DISP = 'TWA_MOD' Toigo-Woodruff model
+                       PL_DISP = 'SUM_RU2' f-sum_rule
+                       PL_DISP = 'SUM_RU3' 3rd-frequency sum_rule
+       * PL_DISP   : method used to compute the plasmon dispersion (2D real case)
+                       PL_DISP = 'HYDRODY' hydrodynamic model
+                       PL_DISP = 'RPA_MOD' RPA model
+                       PL_DISP = 'RAJAGOP' Rajagopal formula
+       * PL_DISP   : method used to compute the plasmon dispersion (1D real case)
+                       PL_DISP = 'HYDRODY' hydrodynamic model
+                       PL_DISP = 'RPA_MOD' RPA model
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+       * GSTDY    : static vs dynamic local-field corrections
+                      GSTDY = ' STATIC'  --> GQ_TYPE
+                      GSTDY = 'DYNAMIC'  --> GQO_TYPE
+
+       * GQ_TYPE  : local-field correction type (3D) static
+                       GQ_TYPE = 'NONE' no local field correction
+                       GQ_TYPE = 'ALDA' adiabatic local density
+                       GQ_TYPE = 'ALFL' Alvarellos-Flores
+                       GQ_TYPE = 'BEBR' Bedell-Brown
+                       GQ_TYPE = 'CDOP' TDDFT Corradini et al correction
+                       GQ_TYPE = 'GEV2' Geldart-Vosko 2
+                       GQ_TYPE = 'GEVO' Geldart-Vosko correction
+                       GQ_TYPE = 'GOCA' Gold-Calmels
+  temperature-dep. --> GQ_TYPE = 'HNCA' hypernetted chain
+                       GQ_TYPE = 'HORA' Holas-Rahman
+                       GQ_TYPE = 'HUBB' Hubbard correction (only exchange)
+                       GQ_TYPE = 'ICUT' Ichimaru-Utsumi correction
+                       GQ_TYPE = 'IKPA' Iwamoto-Krotscheck-Pines
+                       GQ_TYPE = 'IWA1' Iwamoto G_{-1}
+                       GQ_TYPE = 'IWA2' Iwamoto G_{3} approx.
+  temperature-dep. --> GQ_TYPE = 'IWA3' Iwamoto G_{-1}
+                       GQ_TYPE = 'IWA4' Iwamoto G_{3} exact
+                       GQ_TYPE = 'JGDG' Jung-Garcia-Gonzalez-Dobson-Godby
+                       GQ_TYPE = 'KLLA' Kleinman-Langreth correction
+                       GQ_TYPE = 'LDAC' LDA correction
+                       GQ_TYPE = 'MCSC' Moroni-Ceperley-Senatore correction
+                       GQ_TYPE = 'NAGY' Nagy correction
+                       GQ_TYPE = 'NEV1' Nevalinna two-moment approximation
+                       GQ_TYPE = 'PGGA' Petersilka-Gossmann-Gross
+                       GQ_TYPE = 'PVHF' Pavas-Vashishta Hartree-Fock correction
+                       GQ_TYPE = 'RICE' Rice correction
+                       GQ_TYPE = 'SHAW' Shaw correction
+                       GQ_TYPE = 'SLAT' Slater correction
+                       GQ_TYPE = 'STLS' Singwi et al correction
+  temperature-dep. --> GQ_TYPE = 'TKAC' Tkachenko correction
+                       GQ_TYPE = 'TOUL' Toulouse parametrization of CDOP
+                       GQ_TYPE = 'TRMA' Tripathy-Mandal
+                       GQ_TYPE = 'VASI' Vashishta-Singwi correction
+                       GQ_TYPE = 'UTI1' Utsumi-Ichimaru correction (only exchange)
+
+       * GQ_TYPE  : local-field correction type (2D) static
+                       GQ_TYPE = 'NONE' no local field correction
+                       GQ_TYPE = 'BUTO' Bulutay-Tomak
+                       GQ_TYPE = 'DPGT' Davoudi-Giuliani-Giuliani-Tosi
+                       GQ_TYPE = 'GOCA' Gold-Calmels
+                       GQ_TYPE = 'HUBB' Hubbard correction (only exchange)
+                       GQ_TYPE = 'IWA1' Iwamoto G_{-1}
+                       GQ_TYPE = 'IWA2' Iwamoto G_{3}
+                       GQ_TYPE = 'SAIC' Sato-Ichimaru correction
+
+       * GQ_TYPE  : local-field correction type (1D) static
+                       GQ_TYPE = 'NONE' no local field correction
+                       GQ_TYPE = 'GOCA' Gold-Calmels
+                       GQ_TYPE = 'HUBB' Hubbard correction (only exchange)
+
+       * IQ_TYPE  : type of approximation for I(q)
+                       IQ_TYPE  = 'NON' I(q) = 0
+                       IQ_TYPE  = 'GKM' Gorobchenko-Kohn-Maksimov
+                       IQ_TYPE  = 'HKA' Hong-Kim
+                       IQ_TYPE  = 'IKP' Iwamoto-Krotscheck-Pines parametrization
+                       IQ_TYPE  = 'KU1' Kugler 1
+                       IQ_TYPE  = 'KU2' Kugler 1
+
+                                            ~
+
+       * LANDAU  : model chosen for the calculation of the Landau parameters (3D)
+                       LANDAU = 'NONE' Landau's theory not used
+                       LANDAU = 'CHEN' Chen's approach
+                       LANDAU = 'RASC' Rayleigh-Schrödinger expansion
+                       LANDAU = 'ANBR' Anderson-Brinkman model
+                       LANDAU = 'GUTZ' Gutzwiller model
+                       LANDAU = 'IWPI' Iwamoto-Pines model (hard-sphere)
+                       LANDAU = 'GCYO' Giuliani-Vignale parametrization of
+                                        Yasuhara-Ousaka approach
+                       LANDAU = 'SBOH' slave-boson one-band Hubbard model
+
+       * LANDAU  : model chosen for the calculation of the Landau parameters (2D)
+                       LANDAU = 'NONE' Landau's theory not used
+                       LANDAU = 'ERZA' Engelbrecht-Randeria-Zhang approach
+                       LANDAU = 'GVYO' Giuliani-Vignale parametrization of
+                                        Yasuhara-Ousaka approach
+                       LANDAU = 'KCMP' Kwoon-Ceperley-Martin parametrization
+       * GQO_TYPE : local-field correction type (3D)
+                       GQO_TYPE = 'NONE' no local field correction
+                       GQO_TYPE = 'ALFL' Alvarellos-Flores correction
+                       GQO_TYPE = 'BACA' Barriga-Carrasco correction
+                       GQO_TYPE = 'BBSA' Bachlechner-Böhm-Schinner
+                       GQO_TYPE = 'COPI' Constantin-Pitarke
+                       GQO_TYPE = 'DABR' Dabrowski
+                       GQO_TYPE = 'FWRA' Forstmann-Wierling-Röpke
+                       GQO_TYPE = 'HOK1' Hong-Kim correction
+                       GQO_TYPE = 'HOK2' Hong-Kim correction
+                       GQO_TYPE = 'JEWS' Jewsbury approximation
+                       GQO_TYPE = 'KUG1' Kugler q --> 0 approximation
+                       GQO_TYPE = 'KUG2' Kugler approximation
+                       GQO_TYPE = 'MDGA' Mithen-Daligault-Gregori
+                       GQO_TYPE = 'NEV2' Nevalinna three-moment approximation
+                       GQO_TYPE = 'NLGA' Nagy-Laszlo-Giber approximation
+                       GQO_TYPE = 'RIA1' Richardson-Ashcroft G_s
+                       GQO_TYPE = 'RIA2' Richardson-Ashcroft G_n
+                       GQO_TYPE = 'RIA3' Richardson-Ashcroft G_a
+                       GQO_TYPE = 'SHMU' Shah-Mukhopadhyay
+                       GQO_TYPE = 'STGU' Sturm-Gusarov
+                       GQO_TYPE = 'TOWO' Toigo-Woodruff
+                       GQO_TYPE = 'UTI2' Utsumi-Ichimaru approximation
+                       GQO_TYPE = 'VISC' viscosity approximation
+
+       * G0_TYPE : type of calculation of gamma_0
+                       G0_TYPE = 'SQ' from the static structure factor S(q)
+                       G0_TYPE = 'EC' from the correlation energy E_c
+
+       * GI_TYPE : type of calculation of gamma_inf
+                       GI_TYPE = 'SQ' from the static strcuture factor S(q)
+                       GI_TYPE = 'EC' from the correlation energy E_c
+
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+       * DAMPING : type of damping used
+                       DAMPING = 'NONE' no damping
+                       DAMPING = 'LFTM' lifetime
+                       DAMPING = 'RELA' relaxation time
+                       DAMPING = 'DECA' decay rate
+                       DAMPING = 'DIFF' diffusion coefficient
+                       DAMPING = 'VISC' viscosity
+
+       * LT_TYPE    : approximation used for lifetime (3D)
+                       LT_TYPE = 'EXTE' given externally (D_VALUE,POWER)
+                       LT_TYPE = 'DAVI' Davies formula
+                       LT_TYPE = 'GALI' Galitskii formula
+                       LT_TYPE = 'GIQU' Giuliani-Quinn formula
+                       LT_TYPE = 'GIVI' Giuliani-Vignale formula
+                       LT_TYPE = 'INPE' Inogamov-Petrov formula
+                       LT_TYPE = 'LUBR' Lugovskoy-Bray formula
+                       LT_TYPE = 'NAEC' Nagy-Echenique formula
+                       LT_TYPE = 'QIVI' Qian-Vignale formula
+                       LT_TYPE = 'EXTE' given externally (D_VALUE,POWER)
+                       LT_TYPE = 'QUFE' Quinn-Ferrell formula
+
+       * LT_TYPE    : approximation used for lifetime (2D)
+                       LT_TYPE = 'GIQ1' Giuliani-Quinn formula for e-h loss
+                       LT_TYPE = 'GIQ2' Giuliani-Quinn formula for plasmon loss
+                       LT_TYPE = 'GIVI' Giuliani-Vignale formula
+                       LT_TYPE = 'HAWR' Hawrylak formula
+                       LT_TYPE = 'MELA' Menashe-Laikhtman formula
+                       LT_TYPE = 'QIVI' Qian-Vignale formula
+
+       * RT_TYPE  : relaxation time
+                       RT_TYPE = ' NO'   --> no relaxation time
+                       RT_TYPE = 'EX1'   --> given externally (D_VALUE_1,POWER_1)
+                       RT_TYPE = 'EX2'   --> given externally (D_VALUE_1,POWER_1,D_VALUE_2,POWER_2)
+                       RT_TYPE = 'E-E'   --> electron-electron interaction
+                       RT_TYPE = 'E-P'   --> electron-phonon interaction
+                       RT_TYPE = 'E-I'   --> electron-phonon impurity
+                       RT_TYPE = 'ALL'   --> all three taken into account
+
+                                            ~
+
+       * DR_TYPE  : decay rate in 3D
+                       DR_TYPE = 'EXTE' given externally (D_VALUE,POWER)
+                       DR_TYPE = 'UTIC'   --> Utsumi-Ichimaru approximation
+                       DR_TYPE = 'VLAS'   --> Vlasov approximation
+
+       * DC_TYPE  : diffusion coefficient in 3D
+                       DC_TYPE = 'EXTE' given externally (D_VALUE,POWER)
+                       DC_TYPE = 'ASHO'   --> Ashurst-Hoover
+
+       * VI_TYPE  : viscosity in 3D
+                       VI_TYPE = 'EXTE' given externally (D_VALUE,POWER)
+                       VI_TYPE = 'AMPP' Angilella et al hard-sphere fluid     --> T-dependent
+                       VI_TYPE = 'DRBA' Daligault-Rasmussen-Baalrud (plasmas) --> T-dependent
+                       VI_TYPE = 'KHRA' Khrapak for Yukawa fluid  --> T-dependent
+                       VI_TYPE = 'LHPO' Longuet-Higgins-Pope      --> T-dependent
+                       VI_TYPE = 'LLPA' Landau-Lifshitz-Pitaevskii--> T-dependent
+                       VI_TYPE = 'SCHA' Schäfer                   --> T-dependent
+                       VI_TYPE = 'SCHD' Schäfer (dynamic)         --> T-dependent
+                       VI_TYPE = 'SHTE' Shternin                  --> T-dependent
+                       VI_TYPE = 'STEI' Steinberg low-temperature --> T-dependent
+
+       * VI_TYPE  : viscosity in 2D
+                       VI_TYPE = 'EXTE' given externally (D_VALUE,POWER)
+                       VI_TYPE = 'SCHA' Schäfer                     --> T-dependent
+         graphene <--  VI_TYPE = 'KISC' Kiselev-Schmalian (dynamic) --> T-dependent
+         graphene <--  VI_TYPE = 'MSFA' Müller-Schmalian-Fritz      --> T-dependent
+
+                                            ~
+
+       * EE_TYPE  : e-e relaxation time in 3D
+                       EE_TYPE = 'ALAR'   --> Al'tshuler-Aronov (e-e + impurities)
+                       EE_TYPE = 'ALA2'   --> Al'tshuler-Aronov (e-e + impurities)
+                       EE_TYPE = 'BACA'   --> Barriga-Carrasco approximation (e-e)
+                       EE_TYPE = 'FSTB'   --> Fann et al approximation       (e-e)
+                       EE_TYPE = 'PIN1'   --> Pines-Nozières 1st approx.     (e-e)
+                       EE_TYPE = 'PIN2'   --> Pines-Nozières 2nd approx.     (e-e)
+                       EE_TYPE = 'QIV2'   --> Qian-Vignale high-density limit(e-e)
+                       EE_TYPE = 'QIVI'   --> Qian-Vignale                   (e-e)
+                       EE_TYPE = 'RASM'   --> Rammer-Smith                   (e-e)
+                       EE_TYPE = 'TAI0'   --> Tanaka-Ichimaru approximation  (e-e) --> q = 0
+                       EE_TYPE = 'TAIQ'   --> Tanaka-Ichimaru approximation  (e-e) --> q-dependent
+                       EE_TYPE = 'UTIC'   --> Utsumi-Ichimaru approximation  (e-e)
+
+
+       * EE_TYPE  : relaxation time in 2D
+                       EE_TYPE = 'ALA2'   --> Al'tshuler-Aronov (e-e + impurities)
+                       EE_TYPE = 'FUAB'   --> Fukuyama-Abrahams (disordered metals)
+          graphene <-- EE_TYPE = 'LUFO'   --> Lucas-Fong      (e-e)
+                       EE_TYPE = 'QIVI'   --> Qian-Vignale    (e-e)
+                       EE_TYPE = 'RASM'   --> Rammer-Smith    (e-e)
+  heterostructures <-- EE_TYPE = 'REWI'   --> Reizer-Wilkins  (e-e)
+                       EI_TYPE = 'SHAS'   --> Sharma-Ashraf   (e-e + impurities)
+                       EE_TYPE = 'ZHDA'   --> Zhang-Das Sarma (e-e)
+
+       * EE_TYPE  : relaxation time in 1D
+                       EE_TYPE = 'ALA2'   --> Al'tshuler-Aronov (e-e + impurities)
+                       EE_TYPE = 'SHAS'   --> Sharma-Ashraf   (e-e + impurities)
+
+       * EP_TYPE  : e-phonon relaxation time in 3D
+                       EP_TYPE = 'STEL'   --> Steinberg low-temperature
+                       EP_TYPE = 'STEH'   --> Steinberg High-temperature
+
+       * EI_TYPE  : e-impurit relaxation time in 3D
+                       EI_TYPE = 'HEAP'   --> Hertel-Appel approximation
+
+                                            ~
+
+       * IP_TYPE  : ion plasma relaxation time in 3D
+                       IP_TYPE = 'SEMO'   --> Selchow-Morawetz approximation
+                       IP_TYPE = 'SPIT'   --> Spitzer approximation
+
+       * PD_TYPE  : method used to compute the plasmon damping (3D)
+                       PD_TYPE = 'NONE'   --> no plasmon damping
+                       PD_TYPE = 'CALL'   --> Callen approximation
+                       PD_TYPE = 'DGKA'   --> DuBois-Gilinsky-Kivelson approximation
+                       PD_TYPE = 'FEWA'   --> Fetter and Walecka approximation
+                       PD_TYPE = 'JEWS'   --> Jewsbury approximation
+                       PD_TYPE = 'LITI'   --> Giuliani-Quinn lifetime approximation
+                       PD_TYPE = 'MOPE'   --> Molinari-Peerani approximation
+                       PD_TYPE = 'NPSA'   --> Ninham-Powel-Swanson approximation
+                       PD_TYPE = 'SGAA'   --> Segui-Gervasoni-Arista approximation
+
+       * QD_TYPE  : method used to compute q-dependent relaxation time
+                       QD_TYPE = 'NONE'   --> no q-dependence
+                       QD_TYPE = 'GAUS'   --> Gaussian
+                       QD_TYPE = 'LORE'   --> Lorentzian
+
+       * ZETA     : Value of Tanaka-Ichimaru parameter
+
+                                            ~
+
+       * D_VALUE_1: Value of the 1st damping coefficient (between 0 and 999.999)
+
+        * POWER_1 : power of ten to multiply D_VALUE_1 by
+                       POWER = ' KILO'
+                       POWER = ' MEGA'
+                       POWER = ' GIGA'
+                       POWER = ' TERA'
+                       POWER = ' PETA'
+                       POWER = '  EXA'
+                       POWER = 'ZETTA'
+                       POWER = 'MILLI'
+                       POWER = 'MICRO'
+                       POWER = ' NANO'
+                       POWER = ' PICO'
+                       POWER = 'FEMTO'
+                       POWER = ' ATTO'
+                       POWER = 'ZEPTO'
+                       POWER = 'YOCTO'
+
+        * EK      : kinetic energy of electron considered (in eV)
+                      with respect to vacuum level
+
+                                            ~
+
+        * D_VALUE_2: Value of the 2nd damping coefficient (between 0 and 999.999)
+
+        * POWER_2 : power of ten to multiply D_VALUE_2 by
+                       POWER = ' KILO'
+                       POWER = ' MEGA'
+                       POWER = ' GIGA'
+                       POWER = ' TERA'
+                       POWER = ' PETA'
+                       POWER = '  EXA'
+                       POWER = 'ZETTA'
+                       POWER = 'MILLI'
+                       POWER = 'MICRO'
+                       POWER = ' NANO'
+                       POWER = ' PICO'
+                       POWER = 'FEMTO'
+                       POWER = ' ATTO'
+                       POWER = 'ZEPTO'
+                       POWER = 'YOCTO'
+
+        * PCT     : weight of first memory function (relaxation time D_VALUE_1)
+                       0.00 <= PCT <= 1.00
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+       * INT_POT  : type of interaction potential (3D)
+                       INT_POT = 'COULO' Coulomb interaction
+                       INT_POT=  'YUKAW' Yukawa interaction
+                       INT_POT=  'SOFTS' soft sphere
+                       INT_POT=  'LNJNS' Lennard-Jones
+                       INT_POT=  'HCLNJ' hard-core Lennard-Jones
+                       INT_POT=  'KIHAR' Kihara
+                       INT_POT=  'MIE_P' Mie
+                       INT_POT=  'VANDW' Van der Waals
+                       INT_POT=  'MORSE' Morse
+                       INT_POT=  'G_EXP' generalised exponential
+                       INT_POT=  'EXP_6' exp-6
+                       INT_POT=  'MBUCK' modified Buckingham
+                       INT_POT=  'N_COU' neutralised Coulomb
+                       INT_POT=  'H_COR' hard-core
+                       INT_POT=  'P_SPH' penetrable sphere
+                       INT_POT=  'ST-JO' Starkloff-Joannopoulos soft-core
+                       INT_POT=  'LR_OS' long-range oscillatory
+                       INT_POT=  'STOCK' Stockmayer
+                       INT_POT=  'RPAPO' RPA interaction
+                       INT_POT = 'OVER1' Overhauser interaction
+                       INT_POT = 'OVER2' modified Overhauser interaction
+                       INT_POT = 'DEUTS' Deutsch interaction
+                       INT_POT = 'PHOLE' particle-hole interaction
+                       INT_POT = 'KELBG' Kelbg interaction
+
+        * S       :  length scale parameter of the potential (in Angström)
+
+        * EPS     :  depth of the potential (in units of k_B, i.e. in Kelvin)
+
+        * DELTA   :  polarisation of the fluid (dimensionless)
+
+                                            ~
+
+       * RC       :  potential core radius (in Angström)
+       * ALF      :  potential stiffness
+       * M        :  \   exponents for Kihara
+       * N        :  /   and Mie potentials
+
+                                            ~
+
+       * A1       :  \
+       * A2       :   \  parameters for
+       * A3       :   /  long-range oscillatory potentials
+       * A4       :  /
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+       * EP_C     :  electron-phonon coupling
+       * DEBYE_T  :  material Debye temperature
+
+                                            ~
+
+       * NA       :  number of atoms per unit volume
+       * MA       :  mass of the atoms
+       * RA       :  radius of the atoms
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+        * NI      :  impurity concentration
+        * EI_C    :  strength of impurity scattering
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+
+        * CF_TYPE  : type of classical fluid calculation         --> 3D
+                       CF_TYPE = 'SHS' smooth hard spheres
+                       CF_TYPE = 'RH1' rough hard spheres (Pidduck)
+                       CF_TYPE = 'RH2' rough hard spheres (Condiff-Lu-Dahler)
+                       CF_TYPE = 'RH3' rough hard spheres (McCoy-Sandler-Dahler)
+                       CF_TYPE = 'DCE' dilute Chapman-Enskog
+                       CF_TYPE = 'HCE' heavy (i.e. dense) Chapman-Enskog
+                       CF_TYPE = 'LJF' Lennard-Jones fluid
+
+                       CF_TYPE = 'DHD' dense hard disks          --> 2D
+
+        * PF_TYPE  : type of packing fraction                    --> 2D
+                       PF_TYPE = 'HDM'   --> hard disk model
+
+                                                                 --> 3D
+                       PF_TYPE = 'HSM'   --> hard sphere model
+                       PF_TYPE = 'RCP'   --> random closed-packed
+                       PF_TYPE = 'FCC'   --> FCC closed-packed
+                       PF_TYPE = 'FRE'   --> freezing
+                       PF_TYPE = 'MEL'   --> melting
+
+        * SL_TYPE  : type of scattering length calculation
+                       SL_TYPE = 'HSP'   --> hard sphere potential
+                       SL_TYPE = 'ASW'   --> attractive square well (without bound state)
+                       SL_TYPE = 'RSW'   --> repulsive square well
+                       SL_TYPE = 'DSP'   --> delta-shell potential
+                       SL_TYPE = 'AYP'   --> attractive Yukawa potential
+                       SL_TYPE = 'CCO'   --> Coulomb cut-off potential
+                       SL_TYPE = 'HUL'   --> Hulthén potential
+
+ *=======+=========+=========+=========+=========+===========================*
+ *                        STRUCTURE FACTOR :                                 *
+ *=======+=========+=========+=========+=========+===========================*
+
+
+       * SSTDY    : static vs dynamic local-field corrections
+                      SSTDY = ' STATIC'  --> SQ_TYPE
+                      SSTDY = 'DYNAMIC'  --> SQO_TYPE
+
+       * SQ_TYPE   : structure factor approximation (3D) --> static
+                       SQ_TYPE  = 'DEH' Debye-Hückel approximation
+                       SQ_TYPE  = 'GEA' generalized approximation
+                       SQ_TYPE  = 'GOR' Gorobchenko approximation
+                       SQ_TYPE  = 'GR2' computed from g(r) (GR_TO_SQ.f90 code)
+                       SQ_TYPE  = 'GSB' Gori-Giorgi-Sacchetti-Bachelet approximation
+                       SQ_TYPE  = 'HFA' Hartree-Fock approximation (only exchange)
+                       SQ_TYPE  = 'HUB' Hubbard approximation
+                       SQ_TYPE  = 'ICH' Ichimaru approximation
+                       SQ_TYPE  = 'LEE' Lee ideal Fermi gas
+                       SQ_TYPE  = 'MSA' mean spherical approximation
+                       SQ_TYPE  = 'PKA' Pietiläinen-Kallio
+                       SQ_TYPE  = 'RPA' RPA approximation
+                       SQ_TYPE  = 'SHA' Shaw approximation
+                       SQ_TYPE  = 'SIN' Singh
+                       SQ_TYPE  = 'SPA' Singh-Pathak
+                       SQ_TYPE  = 'TWA' Toigo-Woodruff approximation
+!
+       * SQO_TYPE   : structure factor approximation (3D) --> dynamic
+                       SQO_TYPE  = 'ABA' Arista-Brandt approximation
+                       SQO_TYPE  = 'EPS' computed from dielectric function
+                       SQO_TYPE  = 'HFA' Hartree-Fock approximation
+                       SQO_TYPE  = 'HYD' hydrodynamic approximation
+                       SQO_TYPE  = 'IGA' ideal gas approximation
+                       SQO_TYPE  = 'ITA' Ichimaru-Tanaka approximation
+                       SQO_TYPE  = 'MFA' Hansen-McDonald-Pollock approximation
+                       SQO_TYPE  = 'MFD' memory function model
+                       SQO_TYPE  = 'NIC' Nakano-Ichimaru approximation
+                       SQO_TYPE  = 'UTI' Utsumi-Ichimaru approximation (3D)
+                       SQO_TYPE  = 'VLA' linearized Vlasov approximation
+
+ *=======+=========+=========+=========+=========+===========================*
+ *                        PAIR CORRELATION FUNCTION :                        *
+ *=======+=========+=========+=========+=========+===========================*
+
+       * GR_TYPE     : pair correlation function approximation g(r) (3D)
+                       GR_TYPE  = 'CDF' from chain diagram formula of PDF (long distance)
+                       GR_TYPE  = 'DHA' Debye-Hückel approximation
+                       GR_TYPE  = 'DWA' DeWitt approximation
+                       GR_TYPE  = 'FBA' Frieman-Book approximation
+                       GR_TYPE  = 'HFA' Hartree-Fock approximation (only exchange)
+                       GR_TYPE  = 'HUB' Hubbard approximation
+                       GR_TYPE  = 'LLA' Lee-Long approximation
+                       GR_TYPE  = 'ORB' Ortiz-Ballone approximation
+                       GR_TYPE  = 'PDF' from pair distribution function
+                       GR_TYPE  = 'SHA' Shaw approximation
+                       GR_TYPE  = 'SQ2' computed from S(q) (SQ_TO_GR.f90 code)
+                       GR_TYPE  = 'WIG' Wigner approximation
+
+       * GR0_MODE : g(0) (3D)
+                       GR0_MODE  = 'CAGO' --> Calmels-Gold
+                       GR0_MODE  = 'DPGT' --> Davoudi-Polini-Giuliani-Tosi
+                       GR0_MODE  = 'HASA' --> Holas-Aravind-Singwi (small r_s)
+                       GR0_MODE  = 'ICHI' --> Ichimaru
+                       GR0_MODE  = 'KIMB' --> Kimball
+                       GR0_MODE  = 'OVE1' --> Overhauser 1
+                       GR0_MODE  = 'OVE2' --> Overhauser 2
+                       GR0_MODE  = 'QIAN' --> Qian
+       * GR0_MODE : g(0) (2D)
+                       GR0_MODE  = 'CAGO' --> Calmels-Gold
+                       GR0_MODE  = 'HAFO' --> Hartree-Fock
+                       GR0_MODE  = 'MOMA' --> Moreno-Marinescu
+                       GR0_MODE  = 'NSOA' --> Nagano-Singwi-Ohnishi
+                       GR0_MODE  = 'QIAN' --> Qian
+
+ *=======+=========+=========+=========+=========+===========================*
+ *                        PAIR DISTRIBUTION FUNCTION :                       *
+ *=======+=========+=========+=========+=========+===========================*
+
+       * RH_TYPE     : pair distribution function approximation (3D)
+                       RH_TYPE  = 'CDI' chain diagram improved
+                       RH_TYPE  = 'CEG' classical electron gas
+                       RH_TYPE  = 'DEB' Debye electron gas
+                       RH_TYPE  = 'FUA' correct to order 2 in epsilon
+                       RH_TYPE  = 'SDC' short-distance correlations
+                       RH_TYPE  = 'WDA' watermelon diagrams summed
+
+ *=======+=========+=========+=========+=========+===========================*
+ *                        SPECTRAL FUNCTION :                                *
+ *=======+=========+=========+=========+=========+===========================*
+
+                       SPF_TYPE  = 'NAIC' Nakano-Ichimaru approximation
+
+ *=======+=========+=========+=========+=========+===========================*
+ *                         ENERGY CALCULATIONS :                             *
+ *=======+=========+=========+=========+=========+===========================*
+
+       * EC_TYPE  : type of correlation energy functional (3D)
+                       EC_TYPE = 'GEBR_W'   --> Gell-Mann and Brueckner
+                       EC_TYPE = 'CAMA_W'   --> Carr and Maradudin
+                       EC_TYPE = 'EHTY_G'   --> Endo-Horiuchi-Takada-Yasuhara
+                       EC_TYPE = 'HELU_G'   --> Hedin and Lundqvist
+                       EC_TYPE = 'VBHE_G'   --> von Barth and Hedin
+                       EC_TYPE = 'PEZU_G'   --> Perdew and Zunger
+                       EC_TYPE = 'WIGN_G'   --> Wigner
+                       EC_TYPE = 'NOPI_G'   --> Nozières and Pines
+                       EC_TYPE = 'LIRO_G'   --> Lindgren and Rosen
+                       EC_TYPE = 'PEZU_G'   --> Perdew and Zunger
+                       EC_TYPE = 'REHI_G'   --> Rebei and Hitchon
+                       EC_TYPE = 'GGSB_G'   --> Gori-Giorgi-Sacchetti-Bachelet
+                       EC_TYPE = 'PRKO_G'   --> Proynov and Kong
+                       EC_TYPE = 'GGSB_G'   --> Vosko, Wilk and Nusair
+                       EC_TYPE = 'VWNU_G'   --> Perdew and Wang
+                       EC_TYPE = 'HUBB_G'   --> Hubbard
+                       EC_TYPE = 'CHAC_G'   --> Chachiyo
+                       EC_TYPE = 'ISKO_T'   --> Isihara and Kojima
+       * EC_TYPE  : type of correlation energy functional (2D)
+                       EC_TYPE = 'TACE_G'   --> Tanatar-Ceperley
+                       EC_TYPE = 'CPPA_G'   --> Seidl-Perdew_Levy
+                       EC_TYPE = 'AMGB_G'   --> Attaccalite-Moroni-Gori-Giorgi-Bachelet
+                       EC_TYPE = 'SEID_G'   --> Seidl
+                       EC_TYPE = 'LOOS_W'   --> Loos
+                       EC_TYPE = 'WIGN_G'   --> Wigner
+                       EC_TYPE = 'ISTO_T'   --> Isihara-Toyoda
+       * EC_TYPE  : type of correlation energy functional (1D)
+                       EC_TYPE = 'LOOS_W'   --> Loos
+                       EC_TYPE = 'WIGN_G'   --> Wigner
+
+
+       * FXC_TYPE : type of XC free energy functional           --> 3D
+                       FXC_TYPE = 'NO'   --> None
+                       FXC_TYPE = 'EB'   --> Ebeling et al
+                       FXC_TYPE = 'IC'   --> Ichimaru et al
+                       FXC_TYPE = 'KS'   --> Karasiev et al
+                       FXC_TYPE = 'VS'   --> Vashishta and Singwi
+                       FXC_TYPE = 'PD'   --> Perrot and Dharma-Wardana
+                       FXC_TYPE = 'EK'   --> Ebeling-Kraeft-Kremp-Röpke
+
+       * EXC_TYPE : type of exchange-correlation energy functional   --> 3D
+                       EXC_TYPE = 'NO'   --> None
+                       EXC_TYPE = 'GT'   --> Goedeker-Tetter-Hutter
+                       EXC_TYPE = 'ST'   -->
+                       EXC_TYPE = 'BD'   --> Brown-DuBois-Holzmann-Ceperley
+
+                                            ~
+
+
+ *=======+=========+=========+=========+=========+===========================*
+ *                         SPIN POLARIZATION :                               *
+ *=======+=========+=========+=========+=========+===========================*
+
+       * IMODE    : choice of spin parameters
+                       IMODE = 1 : no spin polarization
+                       IMODE = 2 : fully spin-polarized
+
+       * XI       : spin polarization : (n+ - n-) / n
+
+ *=======+=========+=========+=========+=========+===========================*
+ *                        THERMODYNAMIC PROPERTIES :                         *
+ *=======+=========+=========+=========+=========+===========================*
+
+       * TH_PROP   : type of calculation  --> thermodynamic properties
+                      TH_PROP  = 'CLAS' : classical approximation
+                      TH_PROP  = 'QUAN' : quantum approximation
+
+       * GP_TYPE  : grand partition function type (3D)
+                       GP_TYPE = 'IK0' Isihara-Kojima formulation
+                       GP_TYPE = 'RH0' Rebei-Hitchon formulation
+                       GP_TYPE = 'IKM' Isihara-Kojima with magnetic field
+
+       * GP_TYPE  : grand partition function type (2D)
+                       GP_TYPE = 'I20' Isihara-Kojima formulation
+                       GP_TYPE = 'I2M' Isihara-Kojima with magnetic field
+
+ *=======+=========+=========+=========+=========+===========================*
+ *                        ELECTRON MEAN FREE PATH :                          *
+ *=======+=========+=========+=========+=========+===========================*
+
+       * EK_INI   :  starting kinetic energy of electron in eV
+       * EK_FIN   :  final    kinetic energy of electron in eV
+
+ *=======+=========+=========+=========+=========+===========================*
+ *                        CALCULATION OF MOMENTS :                           *
+ *=======+=========+=========+=========+=========+===========================*
+
+       * N        :  order of moment
+       * M_TYPE   : way S(q,omega) is computed
+                       M_TYPE  = 'EPS' from epsilon(q,omega)
+                       M_TYPE  = 'SQO' from S(q,omega)
+
+ *=======+=========+=========+=========+=========+===========================*
+ *                        INCOMING ION BEAM :                                *
+ *=======+=========+=========+=========+=========+===========================*
+
+       * Z_BEAM    :  charge of ions in incoming beam
+       * EK_BEAM   :  kinetic energy of incoming beam ions (eV)
+
+ *=======+=========+=========+=========+=========+===========================*
+ *                        OUTPUT CALCULATIONS :                              *
+ *=======+=========+=========+=========+=========+===========================*
+
+       * I_DF      : switch for dielectric function printing
+                      I_DF  = 0 : dielectric function not printed
+                      I_DF  = 1 : dielectric function printed in file 'diel_func.dat'
+
+       * I_PZ      : switch for polarization function printing
+                      I_PZ  = 0 : polarization function not printed
+                      I_PZ  = 1 : polarization function printed in file 'pola_func.dat'
+
+       * I_SU      : switch for susceptibility function printing
+                      I_SU  = 0 : susceptibility function not printed
+                      I_SU  = 1 : susceptibility function printed in file 'susc_func.dat'
+
+       * I_CD      : switch for electrical conductivity printing
+                      I_CD  = 0 : electrical conductivity not printed
+                      I_CD  = 1 : electrical conductivity printed in file 'cond_func.dat'
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+       * I_PD      : switch for plasmon dispersion printing
+                      I_PD  = 0 :  plasmon dispersion not calculated
+                      I_PD  = 1 :  plasmon dispersion printed in file 'plas_disp.dat'
+
+       * I_EH      : switch for electron-hole dispersion printing
+                      I_EH  = 0 :  electron-hole dispersion not calculated
+                      I_EH  = 1 :  electron-hole dispersion printed in file 'elec_hole.dat'
+
+       * I_E2      : switch for two-electron-hole dispersion printing
+                      I_E2  = 0 :  two-electron-hole dispersion not calculated
+                      I_E2  = 1 :  two-electron-hole dispersion printed in file 'elec_hol2.dat'
+
+       * I_CK      : switch for k-space e-e interaction potential printing
+                      I_CK  = 0 :  potential not calculated
+                      I_CK  = 1 :  potential printed in file 'int_pot_k.dat'
+
+       * I_CR      : switch for real-space e-e interaction potential printing
+                      I_CR  = 0 :  potential not calculated
+                      I_CR  = 1 :  potential printed in file 'int_pot_r.dat'
+
+       * I_PK      : switch for plasmon kinetic energy printing
+                      I_PK  = 0 :  plasmon kinetic energy not calculated
+                      I_PK  = 1 :  plasmon kinetic energy printed in file 'plas_kine.dat'
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+       * I_LF      : switch for local-field corrections G(q,omega) printing
+                      I_LF  = 0 : local-field corrections not calculated
+                      I_LF  = 1 : local-field corrections printed in file 'loca_fiel.dat'
+
+       * I_IQ      : switch for G(q,inf) printing
+                      I_IQ  = 0 : G(q,inf) not calculated
+                      I_IQ  = 1 : G(q,inf) printed in file 'ginf_fiel.dat'
+
+       * I_SF      : switch for structure factor S(q,omega) printing
+                      I_SF  = 0 : structure factor not calculated
+                      I_SF  = 1 : structure factor printed in file 'stru_fact.dat'
+
+       * I_PC      : switch for pair correlation function g(r) printing
+                      I_PC  = 0 :  pair correlation function not calculated
+                      I_PC  = 1 :  pair correlation function printed in file 'pair_corr.dat'
+
+                                            ~
+
+       * I_P2      : switch for pair distribution rho2(r) printing
+                      I_P2  = 0 :  pair distribution function not calculated
+                      I_P2  = 1 :  pair distribution function printed in file 'pair_dist.dat'
+
+       * I_VX      : switch for  vertex function Gamma(q,omega) printing
+                      I_VX  = 0 :  vertex function not calculated
+                      I_VX  = 1 :  vertex function printed in file 'vertex_fu.dat'
+
+       * I_DC      : switch for plasmon damping coefficient Im[eps]/q^2 printing
+                      I_DC  = 0 :  plasmon damping not calculated
+                      I_DC  = 1 :  plasmon damping printed in file 'plas_damp.dat'
+
+       * I_MD      : switch for momentum distribution printing
+                      I_MD  = 0 :  momentum distribution not calculated
+                      I_MD  = 1 :  momentum distribution printed in file 'mome_dist.dat'
+
+                                            ~
+
+       * I_LD      : switch for Landau parameters printing
+                      I_LD  = 0 : Landau parameters not calculated
+                      I_LD  = 1 : Landau parameters printed in file 'landau_pa.dat'
+
+       * I_DP      : switch for damping printing
+                      I_DP  = 0 : damping not calculated
+                      I_DP  = 1 : damping printed in file 'damp_file.dat'
+
+       * I_LT      : switch for plasmon lifetime printing
+                      I_LT  = 0 : plasmon lifetime not calculated
+                      I_LT  = 1 : plasmon lifetime printed in file 'life_time.dat'
+
+       * I_BR      : switch for plasmon broadening printing
+                      I_BR  = 0 : plasmon broadening not calculated
+                      I_BR  = 1 : plasmon broadening printed in file 'broadenin.dat'
+
+                                            ~
+
+       * I_PE      : switch for plasmon energy printing
+                      I_PE  = 0 : plasmon energy not calculated
+                      I_PE  = 1 : plasmon energy printed in file 'plas_ener.dat'
+
+       * I_QC      : switch for plasmon q-bounds printing
+                      I_QC  = 0 : plasmon q-bounds not calculated
+                      I_QC  = 1 : plasmon q-bounds printed in file 'qc_bounds.dat'
+
+       * I_RL      : switch for relaxation time printing
+                      I_RL  = 0 : relaxation time not calculated
+                      I_RL  = 1 : relaxation time printed in file 'rela_time.dat'
+
+       * I_KS      : switch for screening wave vector printing
+                      I_KS  = 0 : screening wave vector not calculated
+                      I_KS  = 1 : screening wave vector printed in file 'screen_wv.dat'
+
+                                            ~
+
+       * I_OQ      : switch for omega = q * v_F printing
+                      I_DY  = 0 :  omega = q * v_F not calculated
+                      I_DY  = 1 :  omega = q * v_F printed in file 'omega_qvf.dat'
+
+       * I_ME      : switch for moments of epsilon(q,omega) printing
+                      I_ME  = 0 : moments of epsilon not calculated
+                      I_ME  = 1 : moments of epsilon printed in file 'moments_e.dat'
+
+       * I_MS      : switch for moments of S(q,omega) printing
+                      I_MS  = 0 : moments of structure factor not calculated
+                      I_MS  = 1 : moments of structure factor printed in file 'moments_s.dat'
+
+       * I_ML      : switch for moments of loss function printing
+                      I_ML  = 0 : moments of loss function not calculated
+                      I_ML  = 1 : moments of loss function printed in file 'moments_l.dat'
+
+                                            ~
+
+       * I_MC      : switch for moments of conductivity printing
+                      I_MC  = 0 : moments of conductivity not calculated
+                      I_MC  = 1 : moments of conductivity printed in file 'moments_c.dat'
+
+       * I_DE      : switch for derivative of Re[ dielectric function ] printing
+                      I_DE  = 0 : derivative not calculated
+                      I_DE  = 1 : derivative printed in file 'deri_epsi.dat'
+
+       * I_ZE      : switch for Re[ dielectric function ] = 0 printing
+                      I_ZE  = 0 : function not calculated
+                      I_ZE  = 1 : function printed in file 'ree0_file.dat'
+
+       * I_SR      : switch for sum rules for epsilon printing
+                      I_SR  = 0 : sum rules not calculated
+                      I_SR  = 1 : sum rules printed in file 'sum_rules.dat'
+
+                                            ~
+
+       * I_CW      : switch for confinement wave function printing
+                      I_CW  = 0 : confinement wave function not calculated
+                      I_CW  = 1 : confinement wave function printed in file 'confin_wf.dat'
+
+       * I_CF      : switch for confinement potential printing
+                      I_CF  = 0 : confinement potential not calculated
+                      I_CF  = 1 : confinement potential printed in file 'confin_pt.dat'
+
+       * I_EM      : switch for effective mass printing
+                      I_EM  = 0 : effective mass not calculated
+                      I_EM  = 1 : effective mass printed in file 'effe_mass.dat'
+
+       * I_MF      : switch for mean free path printing
+                      I_MF  = 0 : mean free path not calculated
+                      I_MF  = 1 : mean free path printed in file 'mean_path.dat'
+
+                                            ~
+
+       * I_SP      : switch for spectral function printing
+                      I_SP  = 0 : spectral function not calculated
+                      I_SP  = 1 : spectral function printed in file 'spec_func.dat'
+
+       * I_SE      : switch for self-energy printing
+                      I_SE  = 0 : self-energy not calculated
+                      I_SE  = 1 : self-energy printed in file 'self_ener.dat'
+
+       * I_SB      : switch for  subband energies printing
+                      I_SB  = 0 : subband energies not calculated
+                      I_SB  = 1 : subband energies printed in file 'subb_ener.dat'
+
+       * I_ES      : switch for Eliashberg function printing
+                      I_ES  = 0 : Eliashberg function not calculated
+                      I_ES  = 1 : Eliashberg function printed in file 'elia_func.dat'
+
+                                            ~
+
+       * I_GR      : switch for Grüneisen parameter printing
+                      I_GR  = 0 : Grüneisen parameter not calculated
+                      I_GR  = 1 : Grüneisen parameter printed in file 'grune_par.dat'
+
+       * I_FD      : switch for Fermi-Dirac distribution printing
+                      I_FD  = 0 : Fermi-Dirac distribution not calculated
+                      I_FD  = 1 : Fermi-Dirac distribution printed in file 'fermi_dir.dat'
+
+       * I_BE      : switch for Bose-Einstein distribution printing
+                      I_BE  = 0 : Bose-Einstein distribution not calculated
+                      I_BE  = 1 : Bose-Einstein distribution printed in file 'bose_eins.dat'
+
+       * I_MX      : switch for Maxwell distribution printing
+                      I_MX  = 0 : Maxwell distribution not calculated
+                      I_MX  = 1 : Maxwell distribution printed in file 'maxwell_d.dat'
+
+                                            ~
+
+       * I_SC      : switch for scale parameters  printing
+                      I_SC  = 0 : scale parameters not calculated
+                      I_SC  = 1 : scale parameters printed in file 'scale_par.dat'
+
+       * I_DS      : switch for density of states printing
+                      I_DS  = 0 : density of states not calculated
+                      I_DS  = 1 : density of states printed in file 'dens_stat.dat'
+
+       * I_NV      : switch for Fourier domain Nevanlinaa/memory function printing
+                      I_NV  = 0 : Nevanlinaa function not calculated
+                      I_NV  = 1 : Nevanlinaa function printed in file 'neva_four.dat'
+
+       * I_MT      : switch for  time domain memory function printing
+                      I_MT  = 0 : memory function not calculated
+                      I_MT  = 1 : memory function printed in file 'memo_time.dat'
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+       * I_GP      : switch for grand partition function printing
+                      I_GP  = 0 : grand partition function not calculated
+                      I_GP  = 1 : grand partition function printed in file 'gran_part.dat'
+
+       * I_PR      : switch for electronic pressure printing
+                      I_PR  = 0 : electronic pressure not calculated
+                      I_PR  = 1 : electronic pressure printed in file 'epressure.dat'
+
+       * I_CO      : switch for compressibility printing
+                      I_CO  = 0 : compressibility not calculated
+                      I_CO  = 1 : compressibility printed in file 'comp_file.dat'
+
+       * I_CP      : switch for chemical potential printing
+                      I_CP  = 0 : chemical potential not calculated
+                      I_CP  = 1 : chemical potential printed in file 'chem_pote.dat'
+
+                                            ~
+
+       * I_BM      : switch for bulk modulus printing
+                      I_BM  = 0 : bulk modulus not calculated
+                      I_BM  = 1 : bulk modulus printed in file 'bulk_modu.dat'
+
+       * I_SH      : switch for shear modulus printing
+                      I_SH  = 0 : shear modulus not calculated
+                      I_SH  = 1 : shear modulus printed in file 'shear_mod.dat'
+
+       * I_S0      : switch for zero sound velocity printing
+                      I_S0  = 0 : zero sound velocity not calculated
+                      I_S0  = 1 : zero sound velocity printed in file 'zero_soun.dat'
+
+       * I_S1      : switch for first sound velocity printing
+                      I_S1  = 0 : first sound velocity not calculated
+                      I_S1  = 1 : first sound velocity printed in file 'firs_soun.dat'
+
+                                            ~
+
+       * I_DT      : switch for Debye temperature printing
+                      I_DT  = 0 : Debye temperature not calculated
+                      I_DT  = 1 : Debye temperature printed in file 'Debye_tmp.dat'
+
+       * I_PS      : switch for Pauli paramagnetic susceptibility printing
+                      I_PS  = 0 : Pauli paramagnetic susceptibility not calculated
+                      I_PS  = 1 : Pauli paramagnetic susceptibility printed in file 'para_susc.dat'
+
+       * I_IE      : switch for internal energy printing
+                      I_IE  = 0 : internal energy not calculated
+                      I_IE  = 1 : internal energy printed in file 'inter_ene.dat'
+
+       * I_EI      : switch for excess internal energy printing
+                      I_EI  = 0 : excess internal energy not calculated
+                      I_EI  = 1 : excess internal energy printed in file 'exces_ene.dat'
+
+                                            ~
+
+       * I_FH      : switch for Helmholtz free energy printing
+                      I_FH  = 0 : Helmholtz free energy not calculated
+                      I_FH  = 1 : Helmholtz free energy printed in file 'helm_free.dat'
+
+       * I_EY      : switch for entropy printing
+                      I_EY  = 0 : entropy not calculated
+                      I_EY  = 1 : entropy printed in file 'entropy_f.dat'
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+       * I_EF      : switch for Fermi energy printing
+                      I_EF  = 0 : Fermi energy not calculated
+                      I_EF  = 1 : Fermi energy printed in file 'fermi_ene.dat'
+
+       * I_KF      : switch for Fermi momentum printing
+                      I_KF  = 0 : Fermi momentum not calculated
+                      I_KF  = 1 : Fermi momentum printed in file 'fermi_vec.dat'
+
+       * I_VF      : switch for Fermi velocity printing
+                      I_VF  = 0 : Fermi velocity not calculated
+                      I_VF  = 1 : Fermi velocity printed in file 'fermi_vel.dat'
+
+       * I_TE      : switch for Fermi temperature printing
+                      I_TE  = 0 : Fermi temperature not calculated
+                      I_TE  = 1 : Fermi temperature printed in file 'fermi_tmp.dat'
+
+                                            ~
+
+       * I_DL      : switch for density of states at Fermi level printing
+                      I_DL  = 0 : density of states at Fermi level not calculated
+                      I_DL  = 1 : density of states at Fermi level printed in file 'fermi_dos.dat'
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+       * I_TW      : switch for thermal De Broglie wavelength printing
+                      I_TW  = 0 : thermal De Broglie wavelength not calculated
+                      I_TW  = 1 : thermal De Broglie wavelength printed in file 'thermal_w.dat'
+
+       * I_VT      : switch for thermal velocity printing
+                      I_VT  = 0 : thermal velocity not calculated
+                      I_VT  = 1 : thermal velocity printed in file 'thermal_v.dat'
+
+       * I_TC      : switch for thermal conductivity printing
+                      I_TC  = 0 : thermal conductivity not calculated
+                      I_TC  = 1 : thermal conductivity printed in file 'thermal_c.dat'
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+       * I_EG      : switch for ground state energy printing
+                      I_EG  = 0 : ground state energy not calculated
+                      I_EG  = 1 : ground state energy printed in file 'ground_st.dat'
+
+       * I_EX      : switch for exchange energy printing
+                      I_EX  = 0 : exchange energy not calculated
+                      I_EX  = 1 : exchange energy printed in file 'ex_energy.dat'
+
+       * I_XC      : switch for exchange correlation energy printing
+                      I_XC  = 0 : exchange correlation energy not calculated
+                      I_XC  = 1 : exchange correlation energy printed in file 'xc_energy.dat'
+
+       * I_EC      : switch for correlation energy printing
+                      I_EC  = 0 : correlation energy not calculated
+                      I_EC  = 1 : correlation energy printed in file 'corr_ener.dat'
+
+                                            ~
+
+       * I_HF      : switch for Hartree-Fock energy printing
+                      I_HF  = 0 : Hartree-Fock energy not calculated
+                      I_HF  = 1 : Hartree-Fock energy printed in file 'hf_energy.dat'
+
+       * I_EK      : switch for kinetic energy printing
+                      I_EK  = 0 : kinetic energy not calculated
+                      I_EK  = 1 : kinetic energy printed in file 'kine_ener.dat'
+
+       * I_EP      : switch for potential energy printing
+                      I_EP  = 0 : potential energy not calculated
+                      I_EP  = 1 : potential energy printed in file 'pote_ener.dat
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+       * I_VI      : switch for shear viscosity printing
+                      I_VI  = 0 : shear viscosity not calculated
+                      I_VI  = 1 : shear viscosity printed in file 'visc_coef.dat'
+
+       * I_DI      : switch for diffusion coefficient printing
+                      I_DI  = 0 : diffusion coefficient not calculated
+                      I_DI  = 1 : diffusion coefficient printed in file 'diff_coef.dat'
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+       * I_FP      : switch for fluctuation potential calculation
+                      I_FP  = 0 :  fluctuation potential not calculated
+
+                      I_FP  = 1 :  fluctuation potential printed in file 'fluct_pot.dat' (function of q)       \ exact
+                      I_FP  = 2 :  fluctuation potential printed in file 'fluct_pot.dat' (function of q and r) / dispersion
+
+                      I_FP  = 3 :  fluctuation potential printed in file 'fluct_pot.dat' (function of q)       \ PL_DISP
+                      I_FP  = 4 :  fluctuation potential printed in file 'fluct_pot.dat' (function of q and r) / dispersion
+
+       * I_EL      : switch for loss function calculation
+                      I_EL  = 0 :  loss function not calculated
+                      I_EL  = 1 :  loss function printed in file 'ener_loss.dat'
+
+       * I_PO      : switch for stopping power calculation
+                      I_PO  = 0 :  stopping power not calculated
+                      I_PO  = 1 :  stopping power printed in file 'stop_powe.dat'
+
+       * I_RF      : switch for refractive index calculation
+                      I_RF  = 0 :  refractive index not calculated
+                      I_RF  = 1 :  refractive index printed in file 'refrac_in.dat'
+
+                                            ~
+
+       * I_VC      : switch for dynamic screened Coulomb potential V(q,omega) calculation
+                      I_VC  = 0 : dynamic screened Coulomb potential not calculated
+                      I_VC  = 1 : dynamic screened Coulomb potential printed in file 'dyna_coul.dat'
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+       * I_FN      : switch for appending the calculation type string
+                        to the output filename
+                      I_FN  = 0 :  standard output filename
+                      I_FN  = 1 :  parameter added to filename
+
+       * I_WR      : switch for writing physical properties into the log file
+                      I_WR  = 0 :  does not write
+                      I_WR  = 1 :  writes
+                      I_WR  = 2 :  writes only for first q-index
+
+       * I_TI      : switch for writing integration tests into the log file
+                      I_TI  = -1 :  writes all the tests
+                      I_TI  =  0 :  does not write
+                      I_TI  =  1 :  writes test for MODULE SPECIFIC_INT_1
+                      I_TI  =  2 :  writes test for MODULE SPECIFIC_INT_2
+                      I_TI  =  3 :  writes test for MODULE SPECIFIC_INT_3
+                      I_TI  =  4 :  writes test for MODULE SPECIFIC_INT_4
+                      I_TI  =  5 :  writes test for MODULE SPECIFIC_INT_5
+                      I_TI  =  6 :  writes test for MODULE SPECIFIC_INT_6
+                      I_TI  =  7 :  writes test for MODULE SPECIFIC_INT_7
+                      I_TI  =  8 :  writes test for MODULE SPECIFIC_INT_8
+                      I_TI  =  9 :  writes test for MODULE SPECIFIC_INT_9
+                      I_TI  = 10 :  writes test for MODULE TEST_INT_HUBBARD
+
+
+
+     Description of the calculation parameters:
+
+ *=======+=========+=========+=========+=========+===========================*
+ *                           GENERAL PARAMETERS :                            *
+ *=======+=========+=========+=========+=========+===========================*
+
+       * Q_MIN    : minimum value of q (in units of k_F)
+       * Q_MAX    : maximum value of q (in units of k_F)
+       * N_Q      : number of q-points
+
+       * E_MIN    : minimum value of energy (in units of E_F)
+       * E_MAX    : maximum value of energy (in units of E_F)
+       * N_E      : number of E-points
+
+       * R_MIN    : minimum value of distance r (in units of 1/k_F)
+       * R_MAX    : maximum value of distance r (in units of 1/k_F))
+       * N_R      : number of r-points
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+       * RS       : average distance between 2 electrons (in units of a0)
+                                            ~
+       * MSOM     : m*/m (for semiconductors)
+                                            ~
+       * MAT_TYP  : type of material
+                       MAT_TYPE  = 'SCHRO' standard solid
+                       MAT_TYPE  = 'DIRAC' massless Fermions 
+                       MAT_TYPE  = 'WATER' liquid water
+                                            ~
+       * EPS_B    : material's dielectric constant
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+       * T        : temperature (in SI)
+                                            ~
+       * E        : external electric field (in SI)
+                                            ~
+       * H        : external magnetic field (in SI)
+                                            ~
+       * FLD      : strength of the magnetic field
+                       FLD = 'NO' no field        
+                       FLD = 'WF' weak field        
+                       FLD = 'IF' intermediate field
+                       FLD = 'LF' large field
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+       * DIM      : dimension of the system
+                       DIM  = '3D' 
+                       DIM  = '2D' 
+                       DIM  = '1D' 
+                       DIM  = 'Q0'  quasi-0D
+                       DIM  = 'Q1'  quasi-1D
+                       DIM  = 'Q2'  quasi-2D
+                       DIM  = 'BL'  bilayer
+                       DIM  = 'ML'  multilayer
+                       DIM  = 'ML'  multilayer
+
+                                            ~
+
+       * R0       : wire radius
+                                            ~
+       * L        : length of quantum well
+                                            ~
+       * OM0      : frequency of the confinement potential (SI)
+                                            ~
+       * CONFIN   : type of confinement
+                       CONFIN = 'NO-CONF' no confinement 
+                       CONFIN = 'DSEPLAY' layer within a stacking of layers
+                       CONFIN = 'CC-1111' cylindrical within subband 1
+                       CONFIN = 'CC-1122' cylindrical between subbands 1 and 2
+                       CONFIN = 'CC-1221' cylindrical between subbands 1 and 2
+                       CONFIN = 'CC-2222' cylindrical within subband 2
+                       CONFIN = 'HC-1111' harmonic within subband 1
+                       CONFIN = 'HC-1122' harmonic between subbands 1 and 2
+                       CONFIN = 'HC-1221' harmonic between subbands 1 and 2
+                       CONFIN = 'HC-2222' harmonic within subband 2
+                       CONFIN = 'INVLAYE' inversion layer in semiconductor
+                       CONFIN = 'IQWE_LB' square well with an infinite barrier
+                       CONFIN = 'PC1_QWI' parabolic 
+                       CONFIN = 'PC2_QWI' parabolic
+                       CONFIN = 'SOFTCOR' soft-core potential
+                       CONFIN = 'SWC_QWI' square well with an infinite barrier
+ 
+                                            ~
+
+       * DL       : interlayer distance 
+                                            ~
+       * D1       : distance between the two layers in the unit cell
+                                            ~
+       * N_DEP    : electron concentration in depletion layer (SI)
+                                            ~
+       * N_INV    : electron concentration in inversion layer (SI)
+ 
+                                            ~
+
+       * H_TYPE   : heterostructure type
+                       H_TYPE  =  'SSL1' semiconductor superlattice of type I
+                       H_TYPE  =  'SSL2' semiconductor superlattice of type II
+                       H_TYPE  =  'BILA' bilayer
+                       H_TYPE  =  'MLA1' multilayer with with one layer  / unit cell
+                       H_TYPE  =  'MLA2' multilayer with with two layers / unit cell
+                                            ~
+       * EPS_1    : background/layer dielectric constant
+                                            ~
+       * EPS_2    : interlayer dielectric constant
+
+ *-------+---------+---------+---------+---------+---------------------------*
+ 
+       * UNIT     : system unit  
+                       UNIT  = 'SIU' international system
+                       UNIT  = 'CGS' CGS system
+                       UNIT  = 'ATU' atomic units
+ 
+       * UNIK     : K unit  
+                       UNIK  = 'SI' international system
+                       UNIK  = 'AU' atomic units
+
+ *-------+---------+---------+---------+---------+---------------------------*
+ 
+       * SC_TYPE  : type of screeening
+                       SC_TYPE  = 'NO' no screening
+                       SC_TYPE  = 'DH' Debye-Hückel
+                       SC_TYPE  = 'KL' Kleinman
+                       SC_TYPE  = 'ST' Streitenberger
+                       SC_TYPE  = 'TF' Thomas-Fermi
+                       SC_TYPE  = 'UI' Utsumi-Ichimaru
+                       SC_TYPE  = 'YT' Yasuhara-Takada
+
+ *-------+---------+---------+---------+---------+---------------------------*
+ 
+       * PL_TYPE  : type of plasma considered
+                      PL_TYPE  = 'OCP' --> one-component plasma (~ electron gas)
+                      PL_TYPE  = 'DCP' --> two-component plasma
+ 
+       * ZION     : atomic number of (first) ion
+ 
+       * ZION2    : atomic number of second ion
+
+ *=======+=========+=========+=========+=========+===========================*
+ *                        DIELECTRIC FUNCTION :                              *
+ *=======+=========+=========+=========+=========+===========================*
+
+
+       * ESTDY    : static vs dynamic dielectric function
+                      STDY = ' STATIC'
+                      STDY = 'DYNAMIC'
+
+       * EPS_T    : type of dielcectric function
+                       EPS_T  = 'LONG' longitudinal --> D_FUNCL
+                       EPS_T  = 'TRAN' transverse   --> D_FUNCT
+
+       * D_FUNC   : model of dielectric function :
+
+                    1) Static:
+
+                       ---> longitudinal:
+
+                      D_FUNCL = 'LRPA' random phase approximation          (3D,2D,1D)
+                      D_FUNCL = 'THFE' Thomas-Fermi approximation          (3D,2D,1D)
+
+                    2) Dynamic:
+
+                       ---> transverse:
+
+                      D_FUNCT = 'RPA1' random phase approximation          (3D,2D)
+                      D_FUNCT = 'RPA2' random phase approximation          (3D)
+                      D_FUNCT = 'LVLA' linearized Vlasov                   (3D)
+                      D_FUNCT = 'MER1' Mermin                              (3D)
+                      D_FUNCT = 'BLTZ' Boltzmann                           (3D)
+
+                       ---> longitudinal:
+
+                      D_FUNCL = 'ATAS' Atwal-Ashcroft                      <-- T-dependent
+                      D_FUNCL = 'BLZ1' Boltzmann
+                      D_FUNCL = 'BLZ2' damped Boltzmann
+                      D_FUNCL = 'DACA' Arista-Brandt                       <-- T-dependent
+                      D_FUNCL = 'HEAP' Hertel-Appel
+                      D_FUNCL = 'HAFO' Hartree-Fock        
+                      D_FUNCL = 'HUCO' Hu-O'Connell                        <-- damping (3D,2D,Q1)
+                      D_FUNCL = 'HYDR' hydrodynamic                        <-- damping
+                      D_FUNCL = 'KLEI' Kleinman                            <-- T-dependent
+                      D_FUNCL = 'KLKD' Klimontovich-Kraeft                 <-- T-dependent
+                      D_FUNCL = 'KLKN' Klimontovich-Kraeft                 <-- T-dependent
+                      D_FUNCL = 'LAND' Landau parameters-based
+                      D_FUNCL = 'LVL1' linearized Vlasov (weak coupling)   <-- T-dependent
+                      D_FUNCL = 'LVL2' linearized Vlasov (strong coupling) <-- T-dependent
+                      D_FUNCL = 'MER1' Mermin 1                            <-- damping
+                      D_FUNCL = 'MER2' Mermin 2                            <-- T-dependent
+                      D_FUNCL = 'MSAP' mean spherical approximation
+                      D_FUNCL = 'NEVA' Nevanlinna                          <-- T-dependent
+                      D_FUNCL = 'PLPO' plasmon pole
+                      D_FUNCL = 'RDF1' Altshuler et al                     <-- damping
+                      D_FUNCL = 'RDF2' Altshuler et al                     <-- damping
+                      D_FUNCL = 'RPA1' RPA
+                      D_FUNCL = 'RPA2' RPA                                 <-- T-dependent
+                      D_FUNCL = 'RPA3' random phase approximation          <-- magnetic field (2D)
+                      D_FUNCL = 'UTIC' Utsumi-Ichimaru                     <-- T-dependent
+                      D_FUNCL = 'VLFP' Vlasov-Fokker-Planck                <-- damping
+
+       * NEV_TYPE : type of Nevalinna function used (only for D_FUNCL = 'NEVA')
+                      NEV_TYPE  = 'NONE' --> no function
+                      NEV_TYPE  = 'STA1' --> static value h(q)
+                      NEV_TYPE  = 'STA2' --> static value h(q)
+                      NEV_TYPE  = 'CLCO' --> Classical Coulomb OCP
+                      NEV_TYPE  = 'AMTA' --> Adamjan-Meyer-Tkachenko
+                      NEV_TYPE  = 'PEEL' --> Perel'-Eliashberg function
+                      NEV_TYPE  = 'PE76' --> Perel'-Eliashberg by Arkhipov et al
+
+                                            ~
+
+       * I_T      :  way to incorporate temperature dependence
+                      I_T  = 0  --> no temperature (T = 0)
+                      I_T  = 1  --> analytical models used
+                      I_T  = 2  --> temperature convolution
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+       * PL_DISP   : method used to compute the plasmon dispersion (3D real case)
+                       PL_DISP = 'HYDRODY' hydrodynamic model
+                       PL_DISP = 'RPA_MOD' RPA model
+                       PL_DISP = 'TWA_MOD' Toigo-Woodruff model
+                       PL_DISP = 'GOA_MOD' Gorobchenko model
+                       PL_DISP = 'HUBBARD' Hubbard model
+                       PL_DISP = 'ELASTIC' elastic model
+                       PL_DISP = 'SGBBN_M' SGBBN model            
+                       PL_DISP = 'UTI_MOD' Utsumi-Ichimaru model
+       * PL_DISP   : method used to compute the plasmon dispersion (2D real case)
+                       PL_DISP = 'HYDRODY' hydrodynamic model
+                       PL_DISP = 'RPA_MOD' RPA model
+       * PL_DISP   : method used to compute the plasmon dispersion (1D real case)
+                       PL_DISP = 'HYDRODY' hydrodynamic model
+                       PL_DISP = 'RPA_MOD' RPA model
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+       * GSTDY    : static vs dynamic local-field corrections
+                      GSTDY = ' STATIC'  --> GQ_TYPE
+                      GSTDY = 'DYNAMIC'  --> GQO_TYPE 
+
+       * GQ_TYPE  : local-field correction type (3D) static
+                       GQ_TYPE = 'NONE' no local field correction
+                       GQ_TYPE = 'ALDA' adiabatic local density
+                       GQ_TYPE = 'ALFL' Alvarellos-Flores
+                       GQ_TYPE = 'BEBR' Bedell-Brown
+                       GQ_TYPE = 'CDOP' TDDFT Corradini et al correction
+                       GQ_TYPE = 'GEV2' Geldart-Vosko 2
+                       GQ_TYPE = 'GEVO' Geldart-Vosko correction
+                       GQ_TYPE = 'GOCA' Gold-Calmels
+  temperature-dep. --> GQ_TYPE = 'HNCA' hypernetted chain
+                       GQ_TYPE = 'HORA' Holas-Rahman
+                       GQ_TYPE = 'HUBB' Hubbard correction (only exchange)
+                       GQ_TYPE = 'ICUT' Ichimaru-Utsumi correction
+                       GQ_TYPE = 'IKPA' Iwamoto-Krotscheck-Pines
+                       GQ_TYPE = 'IWA1' Iwamoto G_{-1}
+                       GQ_TYPE = 'IWA2' Iwamoto G_{3} approx.
+  temperature-dep. --> GQ_TYPE = 'IWA3' Iwamoto G_{-1}  
+                       GQ_TYPE = 'IWA4' Iwamoto G_{3} exact
+                       GQ_TYPE = 'JGDG' Jung-Garcia-Gonzalez-Dobson-Godby
+                       GQ_TYPE = 'KLLA' Kleinman-Langreth correction
+                       GQ_TYPE = 'LDAC' LDA correction
+                       GQ_TYPE = 'MCSC' Moroni-Ceperley-Senatore correction
+                       GQ_TYPE = 'NAGY' Nagy correction
+                       GQ_TYPE = 'PAVA' Pavas-Vashishta correction
+                       GQ_TYPE = 'PGGA' Petersilka-Gossmann-Gross
+                       GQ_TYPE = 'RICE' Rice correction
+                       GQ_TYPE = 'SHAW' Shaw correction
+                       GQ_TYPE = 'SLAT' Slater correction
+                       GQ_TYPE = 'STLS' Singwi et al correction
+  temperature-dep. --> GQ_TYPE = 'TKAC' Tkachenko correction
+                       GQ_TYPE = 'TRMA' Tripathy-Mandal
+                       GQ_TYPE = 'VASI' Vashishta-Singwi correction
+                       GQ_TYPE = 'UTI1' Utsumi-Ichimaru correction (only exchange)
+
+       * GQ_TYPE  : local-field correction type (2D) static
+                       GQ_TYPE = 'NONE' no local field correction
+                       GQ_TYPE = 'BUTO' Bulutay-Tomak
+                       GQ_TYPE = 'DPGT' Davoudi-Giuliani-Giuliani-Tosi
+                       GQ_TYPE = 'GOCA' Gold-Calmels
+                       GQ_TYPE = 'HUBB' Hubbard correction (only exchange)
+                       GQ_TYPE = 'IWA1' Iwamoto G_{-1}
+                       GQ_TYPE = 'IWA2' Iwamoto G_{3}
+                       GQ_TYPE = 'SAIC' Sato-Ichimaru correction
+
+       * GQ_TYPE  : local-field correction type (1D) static
+                       GQ_TYPE = 'NONE' no local field correction
+                       GQ_TYPE = 'GOCA' Gold-Calmels
+                       GQ_TYPE = 'HUBB' Hubbard correction (only exchange)
+ 
+       * IQ_TYPE  : type of approximation for I(q)
+                       IQ_TYPE  = 'GKM' Gorobchenko-Kohn-Maksimov
+                       IQ_TYPE  = 'HKA' Hong-Kim
+                       IQ_TYPE  = 'IKP' Iwamoto-Krotscheck-Pines parametrization
+                       IQ_TYPE  = 'KU1' Kugler 1
+                       IQ_TYPE  = 'KU2' Kugler 1
+
+                                            ~
+
+       * LANDAU  : model chosen for the calculation of the Landau parameters (3D)
+                       LANDAU = 'NONE' Landau's theory not used
+                       LANDAU = 'CHEN' Chen's approach
+                       LANDAU = 'RASC' Rayleigh-Schrödinger expansion
+                       LANDAU = 'ANBR' Anderson-Brinkman model
+                       LANDAU = 'GUTZ' Gutzwiller model
+                       LANDAU = 'IWPI' Iwamoto-Pines model (hard-sphere)
+                       LANDAU = 'GCYO' Giuliani-Vignale parametrization of 
+                                        Yasuhara-Ousaka approach
+                       LANDAU = 'SBOH' slave-boson one-band Hubbard model
+
+       * LANDAU  : model chosen for the calculation of the Landau parameters (2D)
+                       LANDAU = 'NONE' Landau's theory not used
+                       LANDAU = 'ERZA' Engelbrecht-Randeria-Zhang approach
+                       LANDAU = 'GVYO' Giuliani-Vignale parametrization of 
+                                        Yasuhara-Ousaka approach
+                       LANDAU = 'KCMP' Kwoon-Ceperley-Martin parametrization
+       * GQO_TYPE : local-field correction type (3D)
+                       GQO_TYPE = 'NONE' no local field correction
+                       GQO_TYPE = 'ALFL' Alvarellos-Flores correction
+                       GQO_TYPE = 'BACA' Barriga-Carrasco correction
+                       GQO_TYPE = 'BBSA' Bachlechner-Böhm-Schinner
+                       GQO_TYPE = 'COPI' Constantin-Pitarke
+                       GQO_TYPE = 'DABR' Dabrowski
+                       GQO_TYPE = 'FWRA' Forstmann-Wierling-Röpke
+                       GQO_TYPE = 'HOK1' Hong-Kim correction
+                       GQO_TYPE = 'HOK2' Hong-Kim correction
+                       GQO_TYPE = 'JEWS' Jewsbury approximation
+                       GQO_TYPE = 'KUG1' Kugler q --> 0 approximation
+                       GQO_TYPE = 'KUG2' Kugler approximation
+                       GQO_TYPE = 'MDGA' Mithen-Daligault-Gregori
+                       GQO_TYPE = 'NLGA' Nagy-Laszlo-Giber approximation
+                       GQO_TYPE = 'RIA1' Richardson-Ashcroft G_s
+                       GQO_TYPE = 'RIA2' Richardson-Ashcroft G_n
+                       GQO_TYPE = 'RIA3' Richardson-Ashcroft G_a
+                       GQO_TYPE = 'SHMU' Shah-Mukhopadhyay 
+                       GQO_TYPE = 'TOWO' Toigo-Woodruff
+                       GQO_TYPE = 'UTI2' Utsumi-Ichimaru approximation
+                       GQO_TYPE = 'VISC' viscosity approximation
+ 
+ *-------+---------+---------+---------+---------+---------------------------*
+
+       * DAMPING : type of damping used
+                       DAMPING = 'NONE' no damping
+                       DAMPING = 'LFTM' lifetime
+                       DAMPING = 'RELA' relaxation time
+                       DAMPING = 'DECA' decay rate
+                       DAMPING = 'DIFF' diffusion coefficient
+                       DAMPING = 'VISC' viscosity
+
+       * LT_TYPE    : approximation used for lifetime (3D)
+                       LT_TYPE = 'DAVI' Davies formula
+                       LT_TYPE = 'GALI' Galitskii formula
+                       LT_TYPE = 'GIQU' Giuliani-Quinn formula
+                       LT_TYPE = 'GIVI' Giuliani-Vignale formula 
+                       LT_TYPE = 'INPE' Inogamov-Petrov formula
+                       LT_TYPE = 'LUBR' Lugovskoy-Bray formula
+                       LT_TYPE = 'NAEC' Nagy-Echenique formula
+                       LT_TYPE = 'QIVI' Qian-Vignale formula
+                       LT_TYPE = 'QUFE' Quinn-Ferrell formula
+
+       * LT_TYPE    : approximation used for lifetime (2D)
+                       LT_TYPE = 'GIQ1' Giuliani-Quinn formula for e-h loss
+                       LT_TYPE = 'GIQ2' Giuliani-Quinn formula for plasmon loss
+                       LT_TYPE = 'GIVI' Giuliani-Vignale formula
+                       LT_TYPE = 'HAWR' Hawrylak formula
+                       LT_TYPE = 'MELA' Menashe-Laikhtman formula
+                       LT_TYPE = 'QIVI' Qian-Vignale formula
+
+       * RT_TYPE  : relaxation time
+                       RT_TYPE = ' NO'   --> no relaxation time
+                       RT_TYPE = 'E-E'   --> electron-electron interaction
+                       RT_TYPE = 'E-P'   --> electron-phonon interaction
+                       RT_TYPE = 'E-I'   --> electron-phonon impurity
+                       RT_TYPE = 'ALL'   --> all three taken into account
+
+                                            ~
+ 
+       * DR_TYPE  : decay rate in 3D
+                       DR_TYPE = 'UTIC'   --> Utsumi-Ichimaru approximation
+                       DR_TYPE = 'VLAS'   --> Vlasov approximation
+
+       * DC_TYPE  : diffusion coefficient in 3D
+                       DC_TYPE = 'ASHO'   --> Ashurst-Hoover
+
+       * VI_TYPE  : viscosity in 3D
+                       VI_TYPE = 'AMPP' Angilella et al hard-sphere fluid     --> T-dependent
+                       VI_TYPE = 'DRBA' Daligault-Rasmussen-Baalrud (plasmas) --> T-dependent
+                       VI_TYPE = 'KHRA' Khrapak for Yukawa fluid  --> T-dependent
+                       VI_TYPE = 'LHPO' Longuet-Higgins-Pope      --> T-dependent
+                       VI_TYPE = 'SCHA' Schäfer                   --> T-dependent
+                       VI_TYPE = 'SCHD' Schäfer (dynamic)         --> T-dependent
+                       VI_TYPE = 'SHTE' Shternin                  --> T-dependent
+                       VI_TYPE = 'STEI' Steinberg low-temperature --> T-dependent
+
+       * VI_TYPE  : viscosity in 2D
+                       VI_TYPE = 'SCHA' Schäfer                     --> T-dependent
+         graphene <--  VI_TYPE = 'KISC' Kiselev-Schmalian (dynamic) --> T-dependent
+         graphene <--  VI_TYPE = 'MSFA' Müller-Schmalian-Fritz      --> T-dependent  
+
+                                            ~
+
+       * EE_TYPE  : e-e relaxation time in 3D
+                       RT_TYPE = 'ALAR'   --> Al'tshuler-Aronov (e-e + impurities)
+                       RT_TYPE = 'BACA'   --> Barriga-Carrasco approximation (e-e)
+                       RT_TYPE = 'FSTB'   --> Fann et al approximation       (e-e)
+                       RT_TYPE = 'QIVI'   --> Qian-Vignale                   (e-e)
+                       RT_TYPE = 'RASM'   --> Rammer-Smith                   (e-e)
+                       RT_TYPE = 'UTIC'   --> Utsumi-Ichimaru approximation  (e-e)
+                       RT_TYPE = 'TAIC'   --> Tanaka-Ichimaru approximation  (e-e)
+
+
+       * EE_TYPE  : relaxation time in 2D
+                       EE_TYPE = 'FUAB'   --> Fukuyama-Abrahams (disordered metals)
+          graphene <-- EE_TYPE = 'LUFO'   --> Lucas-Fong      (e-e)
+                       EE_TYPE = 'QIVI'   --> Qian-Vignale    (e-e)
+                       EE_TYPE = 'RASM'   --> Rammer-Smith    (e-e)
+  heterostructures <-- EE_TYPE = 'REWI'   --> Reizer-Wilkins  (e-e)
+                       EI_TYPE = 'SHAS'   --> Sharma-Ashraf   (e-e + impurities)
+                       EE_TYPE = 'ZHDA'   --> Zhang-Das Sarma (e-e)
+
+       * EE_TYPE  : relaxation time in 1D
+                       EI_TYPE = 'SHAS'   --> Sharma-Ashraf   (e-e + impurities)
+
+       * EP_TYPE  : e-phonon relaxation time in 3D
+                       EP_TYPE = 'STEL'   --> Steinberg low-temperature  
+                       EP_TYPE = 'STEH'   --> Steinberg High-temperature
+
+       * EI_TYPE  : e-impurit relaxation time in 3D
+                       EI_TYPE = 'HEAP'   --> Hertel-Appel approximation
+
+                                            ~
+
+       * IP_TYPE  : ion plasma relaxation time in 3D
+                       IP_TYPE = 'SEMO'   --> Selchow-Morawetz approximation
+                       IP_TYPE = 'SPIT'   --> Spitzer approximation 
+
+       * PD_TYPE  : method used to compute the plasmon damping (3D)
+                       PD_TYPE = 'NONE'   --> no plasmon damping
+                       PD_TYPE = 'CALL'   --> Callen approximation
+                       PD_TYPE = 'DGKA'   --> DuBois-Gilinsky-Kivelson approximation
+                       PD_TYPE = 'FEWA'   --> Fetter and Walecka approximation
+                       PD_TYPE = 'JEWS'   --> Jewsbury approximation
+                       PD_TYPE = 'LITI'   --> Giuliani-Quinn lifetime approximation
+                       PD_TYPE = 'MOPE'   --> Molinari-Peerani approximation
+                       PD_TYPE = 'NPSA'   --> Ninham-Powel-Swanson approximation
+                       PD_TYPE = 'SGAA'   --> Segui-Gervasoni-Arista approximation
+
+                                            ~
+
+       * QD_TYPE  : method used to compute q-dependent relaxation time
+                       QD_TYPE = 'NONE'   --> no q-dependence
+                       QD_TYPE = 'GAUS'   --> Gaussian
+                       QD_TYPE = 'LORE'   --> Lorentzian
+
+       * ZETA     : Value of Tanaka-Ichimaru parameter
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+       * INT_POT  : type of interaction potential (3D)
+                       INT_POT = 'COULO' Coulomb interaction
+                       INT_POT=  'YUKAW' Yukawa interaction
+                       INT_POT=  'RPAPO' RPA interaction
+                       INT_POT = 'OVER1' Overhauser interaction
+                       INT_POT = 'OVER2' modified Overhauser interaction
+                       INT_POT = 'DEUTS' Deutsch interaction
+                       INT_POT = 'PHOLE' particle-hole interaction
+                       INT_POT = 'KELBG' Kelbg interaction
+
+        * S       :  
+
+        * EPS     :  
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+       * EK       :  electron kinetic energy (eV)
+       * EP_C     :  electron-phonon coupling
+       * DEBYE_T  :  material Debye temperature
+
+                                            ~
+
+       * NA       :  number of atoms per unit volume
+       * MA       :  mass of the atoms
+       * RA       :  radius of the atoms
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+        * NI      :  impurity concentration
+        * EI_C    :  strength of impurity scattering
+
+ *-------+---------+---------+---------+---------+---------------------------*
+
+
+        * CF_TYPE  : type of classical fluid calculation         --> 3D
+                       CF_TYPE = 'SHS' smooth hard spheres
+                       CF_TYPE = 'RH1' rough hard spheres (Pidduck)
+                       CF_TYPE = 'RH2' rough hard spheres (Condiff-Lu-Dahler)
+                       CF_TYPE = 'RH3' rough hard spheres (McCoy-Sandler-Dahler)
+                       CF_TYPE = 'DCE' dilute Chapman-Enskog
+                       CF_TYPE = 'HCE' heavy (i.e. dense) Chapman-Enskog
+                       CF_TYPE = 'LJF' Lennard-Jones fluid
+
+                       CF_TYPE = 'DHD' dense hard disks          --> 2D 
+
+        * PF_TYPE  : type of packing fraction                    --> 2D    
+                       PF_TYPE = 'HDM'   --> hard disk model
+
+                                                                 --> 3D
+                       PF_TYPE = 'HSM'   --> hard sphere model
+                       PF_TYPE = 'RCP'   --> random closed-packed
+                       PF_TYPE = 'FCC'   --> FCC closed-packed
+                       PF_TYPE = 'FRE'   --> freezing
+                       PF_TYPE = 'MEL'   --> melting
+
+        * SL_TYPE  : type of scattering length calculation
+                       SL_TYPE = 'HSP'   --> hard sphere potential
+                       SL_TYPE = 'ASW'   --> attractive square well (without bound state)
+                       SL_TYPE = 'RSW'   --> repulsive square well
+                       SL_TYPE = 'DSP'   --> delta-shell potential
+                       SL_TYPE = 'AYP'   --> attractive Yukawa potential
+                       SL_TYPE = 'CCO'   --> Coulomb cut-off potential
+                       SL_TYPE = 'HUL'   --> Hulthén potential
+
+ *=======+=========+=========+=========+=========+===========================*
+ *                        STRUCTURE FACTOR :                                 *
+ *=======+=========+=========+=========+=========+===========================*
+
+
+       * SSTDY    : static vs dynamic local-field corrections
+                      SSTDY = ' STATIC'  --> SQ_TYPE
+                      SSTDY = 'DYNAMIC'  --> SQO_TYPE 
+
+       * SQ_TYPE   : structure factor approximation (3D) --> static
+                       SQ_TYPE  = 'DEH' Debye-Hückel approximation
+                       SQ_TYPE  = 'GEA' generalized approximation
+                       SQ_TYPE  = 'GOR' Gorobchenko approximation
+                       SQ_TYPE  = 'GR2' computed from g(r) (GR_TO_SQ.f code)
+                       SQ_TYPE  = 'GSB' Gori-Giorgi-Sacchetti-Bachelet approximation
+                       SQ_TYPE  = 'HFA' Hartree-Fock approximation (only exchange)
+                       SQ_TYPE  = 'HUB' Hubbard approximation
+                       SQ_TYPE  = 'ICH' Ichimaru approximation
+                       SQ_TYPE  = 'MSA' mean spherical approximation
+                       SQ_TYPE  = 'PKA' Pietiläinen-Kallio
+                       SQ_TYPE  = 'RPA' RPA approximation
+                       SQ_TYPE  = 'SHA' Shaw approximation
+                       SQ_TYPE  = 'SIN' Singh
+                       SQ_TYPE  = 'SPA' Singh-Pathak
+                       SQ_TYPE  = 'TWA' Toigo-Woodruff approximation
+! 
+       * SQO_TYPE   : structure factor approximation (3D) --> dynamic
+                       SQO_TYPE  = 'ABA' Arista-Brandt approximation
+                       SQO_TYPE  = 'HFA' Hartree-Fock approximation
+                       SQO_TYPE  = 'HYD' hyrodynamic approximation
+                       SQO_TYPE  = 'IGA' ideal gas approximation
+                       SQO_TYPE  = 'ITA' Ichimaru-Tanaka approximation
+                       SQO_TYPE  = 'MFA' Hansen-McDonald-Pollock approximation
+                       SQO_TYPE  = 'NIC' Nakano-Ichimaru approximation
+                       SQO_TYPE  = 'UTI' Utsumi-Ichimaru approximation (3D)
+                       SQO_TYPE  = 'VLA' linearized Vlasov approximation
+ 
+ *=======+=========+=========+=========+=========+===========================*
+ *                        PAIR CORRELATION FUNCTION :                        *
+ *=======+=========+=========+=========+=========+===========================*
+
+       * GR_TYPE     : pair correlation function approximation g(r) (3D)
+                       GR_TYPE  = 'CDF' from chain diagram formula of PDF (long distance)
+                       GR_TYPE  = 'DHA' Debye-Hückel approximation 
+                       GR_TYPE  = 'DWA' DeWitt approximation 
+                       GR_TYPE  = 'FBA' Frieman-Book approximation 
+                       GR_TYPE  = 'HFA' Hartree-Fock approximation (only exchange)
+                       GR_TYPE  = 'HUB' Hubbard approximation
+                       GR_TYPE  = 'LLA' Lee-Long approximation
+                       GR_TYPE  = 'ORB' Ortiz-Ballone approximation
+                       GR_TYPE  = 'PDF' from pair distribution function 
+                       GR_TYPE  = 'SHA' Shaw approximation
+                       GR_TYPE  = 'SQ2' computed from S(q) (SQ_TO_GR.f code)
+                       GR_TYPE  = 'WIG' Wigner approximation
+ 
+       * GR0_MODE : g(0) (3D)
+                       GR0_MODE  = 'CAGO' --> Calmels-Gold
+                       GR0_MODE  = 'DPGT' --> Davoudi-Polini-Giuliani-Tosi
+                       GR0_MODE  = 'HASA' --> Holas-Aravind-Singwi (small r_s)
+                       GR0_MODE  = 'ICHI' --> Ichimaru
+                       GR0_MODE  = 'KIMB' --> Kimball
+                       GR0_MODE  = 'OVE1' --> Overhauser 1
+                       GR0_MODE  = 'OVE2' --> Overhauser 2
+                       GR0_MODE  = 'QIAN' --> Qian
+       * GR0_MODE : g(0) (2D)
+                       GR0_MODE  = 'CAGO' --> Calmels-Gold
+                       GR0_MODE  = 'HAFO' --> Hartree-Fock 
+                       GR0_MODE  = 'MOMA' --> Moreno-Marinescu 
+                       GR0_MODE  = 'NSOA' --> Nagano-Singwi-Ohnishi
+                       GR0_MODE  = 'QIAN' --> Qian
+ 
+ *=======+=========+=========+=========+=========+===========================*
+ *                        PAIR DISTRIBUTION FUNCTION :                       *
+ *=======+=========+=========+=========+=========+===========================*
+ 
+       * RH_TYPE     : pair distribution function approximation (3D)
+                       RH_TYPE  = 'CDI' chain diagram improved
+                       RH_TYPE  = 'CEG' classical electron gas
+                       RH_TYPE  = 'DEB' Debye electron gas 
+                       RH_TYPE  = 'FUA' correct to order 2 in epsilon
+                       RH_TYPE  = 'SDC' short-distance correlations
+                       RH_TYPE  = 'WDA' watermelon diagrams summed
+ 
+ *=======+=========+=========+=========+=========+===========================*
+ *                         ENERGY CALCULATIONS :                             *
+ *=======+=========+=========+=========+=========+===========================*
+
+       * EC_TYPE  : type of correlation energy functional (3D)
+                       EC_TYPE = 'GEBR_W'   --> Gell-Mann and Brueckner
+                       EC_TYPE = 'CAMA_W'   --> Carr and Maradudin
+                       EC_TYPE = 'EHTY_S'   --> Endo-Horiuchi-Takada-Yasuhara
+                       EC_TYPE = 'HELU_W'   --> Hedin and Lundqvist
+                       EC_TYPE = 'VBHE_W'   --> von Barth and Hedin
+                       EC_TYPE = 'PEZU_W'   --> Perdew and Zunger
+                       EC_TYPE = 'WIGN_S'   --> Wigner
+                       EC_TYPE = 'NOPI_S'   --> Nozières and Pines
+                       EC_TYPE = 'LIRO_S'   --> Lindgren and Rosen
+                       EC_TYPE = 'PEZU_S'   --> Perdew and Zunger
+                       EC_TYPE = 'REHI_S'   --> Rebei and Hitchon
+                       EC_TYPE = 'GGSB_G'   --> Gori-Giorgi-Sacchetti-Bachelet
+                       EC_TYPE = 'PRKO_G'   --> Proynov and Kong
+                       EC_TYPE = 'VWNU_G'   --> Vosko, Wilk and Nusair
+                       EC_TYPE = 'PEWA_G'   --> Perdew and Wang
+                       EC_TYPE = 'HUBB_G'   --> Hubbard
+                       EC_TYPE = 'CHAC_G'   --> Chachiyo
+                       EC_TYPE = 'ISKO_T'   --> Isihara and Kojima
+       * EC_TYPE  : type of correlation energy functional (2D)
+                       EC_TYPE = 'TACE_G'   --> Tanatar-Ceperley
+                       EC_TYPE = 'CPPA_G'   --> Seidl-Perdew_Levy
+                       EC_TYPE = 'AMGB_G'   --> Attaccalite-Moroni-Gori-Giorgi-Bachelet
+                       EC_TYPE = 'SEID_G'   --> Seidl
+                       EC_TYPE = 'LOOS_W'   --> Loos
+                       EC_TYPE = 'WIGN_S'   --> Wigner
+                       EC_TYPE = 'ISTO_T'   --> Isihara-Toyoda
+       * EC_TYPE  : type of correlation energy functional (1D)
+                       EC_TYPE = 'LOOS_W'   --> Loos
+                       EC_TYPE = 'WIGN_S'   --> Wigner
+ 
+ 
+       * FXC_TYPE : type of XC free energy functional           --> 3D
+                       FXC_TYPE = 'NO'   --> None
+                       FXC_TYPE = 'EB'   --> Ebeling et al
+                       FXC_TYPE = 'IC'   --> Ichimaru et al
+                       FXC_TYPE = 'KS'   --> Karasiev et al
+                       FXC_TYPE = 'VS'   --> Vashishta and Singwi
+                       FXC_TYPE = 'PD'   --> Perrot and Dharma-Wardana
+                       FXC_TYPE = 'EK'   --> Ebeling-Kraeft-Kremp-Röpke
+
+       * EXC_TYPE : type of exchange-correlation energy functional   --> 3D
+                       EXC_TYPE = 'NO'   --> None
+                       EXC_TYPE = 'GT'   --> Goedeker-Tetter-Hutter
+                       EXC_TYPE = 'ST'   --> 
+                       EXC_TYPE = 'BD'   --> Brown-DuBois-Holzmann-Ceperley
+
+                                            ~
+
+ 
+ *=======+=========+=========+=========+=========+===========================*
+ *                         SPIN POLARIZATION :                               *
+ *=======+=========+=========+=========+=========+===========================*
+ 
+       * IMODE    : choice of spin parameters
+                       IMODE = 1 : no spin polarization 
+                       IMODE = 2 : fully spin-polarized
+             
+       * XI       : spin polarization : (n+ - n-) / n
+
+ *=======+=========+=========+=========+=========+===========================*
+ *                        THERMODYNAMIC PROPERTIES :                         *
+ *=======+=========+=========+=========+=========+===========================*
+ 
+       * TH_PROP   : type of calculation  --> thermodynamic properties
+                      TH_PROP  = 'CLAS' : classical approximation 
+                      TH_PROP  = 'QUAN' : quantum approximation 
+
+       * GP_TYPE  : grand partition function type (3D)
+                       GP_TYPE = 'IK0' Isihara-Kojima formulation
+                       GP_TYPE = 'RH0' Rebei-Hitchon formulation
+                       GP_TYPE = 'IKM' Isihara-Kojima with magnetic field
+
+       * GP_TYPE  : grand partition function type (2D)
+                       GP_TYPE = 'I20' Isihara-Kojima formulation
+                       GP_TYPE = 'I2M' Isihara-Kojima with magnetic field
+ 
+ *=======+=========+=========+=========+=========+===========================*
+ *                        INCOMING ION BEAM :                                *
+ *=======+=========+=========+=========+=========+===========================*
+
+       * Z_BEAM    :  charge of ions in incoming beam
+       * EK_BEAM   :  kinetic energy of incoming beam ions (eV)
+
+ *=======+=========+=========+=========+=========+===========================*
+ *                        OUTPUT CALCULATIONS :                              *
+ *=======+=========+=========+=========+=========+===========================*
+ 
+       * I_DF      : switch for dielectric function printing
+                      I_DF  = 0 : dielectric function not printed
+                      I_DF  = 1 : dielectric function printed in file 'diel_func.dat'
+ 
+       * I_PZ      : switch for polarization function printing
+                      I_PZ  = 0 : polarization function not printed
+                      I_PZ  = 1 : polarization function printed in file 'pola_func.dat'
+ 
+       * I_SU      : switch for susceptibility function printing
+                      I_SU  = 0 : susceptibility function not printed
+                      I_SU  = 1 : susceptibility function printed in file 'susc_func.dat'
+ 
+       * I_CD      : switch for electrical conductivity printing
+                      I_CD  = 0 : electrical conductivity not printed
+                      I_CD  = 1 : electrical conductivity printed in file 'cond_func.dat'
+ 
+ *-------+---------+---------+---------+---------+---------------------------*
+ 
+       * I_PD      : switch for plasmon dispersion printing
+                      I_PD  = 0 :  plasmon dispersion not calculated
+                      I_PD  = 1 :  plasmon dispersion printed in file 'plas_disp.dat'
+ 
+       * I_EH      : switch for electron-hole dispersion printing
+                      I_EH  = 0 :  electron-hole dispersion not calculated
+                      I_EH  = 1 :  electron-hole dispersion printed in file 'elec_hole.dat'
+ 
+       * I_E2      : switch for two-electron-hole dispersion printing
+                      I_E2  = 0 :  two-electron-hole dispersion not calculated
+                      I_E2  = 1 :  two-electron-hole dispersion printed in file 'elec_hol2.dat'
+ 
+       * I_CK      : switch for k-space e-e interaction potential printing
+                      I_CK  = 0 :  potential not calculated
+                      I_CK  = 1 :  potential printed in file 'int_pot_k.dat'
+ 
+       * I_CR      : switch for real-space e-e interaction potential printing
+                      I_CR  = 0 :  potential not calculated
+                      I_CR  = 1 :  potential printed in file 'int_pot_r.dat'
+ 
+       * I_SA      : switch for scattering amplitude printing
+                      I_SA  = 0 :  scattering amplitude not calculated
+                      I_SA  = 1 :  scattering amplitude printed in file 'scat_ampl.dat'
+ 
+ *-------+---------+---------+---------+---------+---------------------------*
+ 
+       * I_LF      : switch for local-field corrections G(q,omega) printing
+                      I_LF  = 0 : local-field corrections not calculated
+                      I_LF  = 1 : local-field corrections printed in file 'loca_fiel.dat'
+ 
+       * I_IQ      : switch for G(q,inf) printing
+                      I_IQ  = 0 : G(q,inf) not calculated
+                      I_IQ  = 1 : G(q,inf) printed in file 'ginf_fiel.dat'
+ 
+       * I_SF      : switch for structure factor S(q,omega) printing
+                      I_SF  = 0 : structure factor not calculated
+                      I_SF  = 1 : structure factor printed in file 'stru_fact.dat'
+ 
+       * I_PC      : switch for pair correlation function g(r) printing
+                      I_PC  = 0 :  pair correlation function not calculated
+                      I_PC  = 1 :  pair correlation function printed in file 'pair_corr.dat'
+ 
+                                            ~
+ 
+       * I_P2      : switch for pair distribution rho2(r) printing
+                      I_P2  = 0 :  pair distribution function not calculated
+                      I_P2  = 1 :  pair distribution function printed in file 'pair_dist.dat'
+ 
+       * I_VX      : switch for  vertex function Gamma(q,omega) printing
+                      I_VX  = 0 :  vertex function not calculated
+                      I_VX  = 1 :  vertex function printed in file 'vertex_fu.dat'
+ 
+       * I_DC      : switch for plasmon damping coefficient Im[eps]/q^2 printing
+                      I_DC  = 0 :  plasmon damping not calculated
+                      I_DC  = 1 :  plasmon damping printed in file 'plas_damp.dat'
+ 
+       * I_MD      : switch for momentum distribution printing
+                      I_MD  = 0 :  momentum distribution not calculated
+                      I_MD  = 1 :  momentum distribution printed in file 'mome_dist.dat'
+ 
+                                            ~
+ 
+       * I_LD      : switch for Landau parameters printing
+                      I_LD  = 0 : Landau parameters not calculated
+                      I_LD  = 1 : Landau parameters printed in file 'landau_pa.dat'
+ 
+       * I_DP      : switch for damping printing
+                      I_DP  = 0 : damping not calculated
+                      I_DP  = 1 : damping printed in file 'damp_file.dat'
+ 
+       * I_LT      : switch for plasmon lifetime printing
+                      I_LT  = 0 : plasmon lifetime not calculated
+                      I_LT  = 1 : plasmon lifetime printed in file 'life_time.dat'
+ 
+       * I_BR      : switch for plasmon broadening printing
+                      I_BR  = 0 : plasmon broadening not calculated
+                      I_BR  = 1 : plasmon broadening printed in file 'broadenin.dat'
+ 
+                                            ~
+ 
+       * I_PE      : switch for plasmon energy printing
+                      I_PE  = 0 : plasmon energy not calculated
+                      I_PE  = 1 : plasmon energy printed in file 'plas_ener.dat'
+ 
+       * I_QC      : switch for plasmon q-bounds printing
+                      I_QC  = 0 : plasmon q-bounds not calculated
+                      I_QC  = 1 : plasmon q-bounds printed in file 'qc_bounds.dat'
+ 
+       * I_RL      : switch for relaxation time printing
+                      I_RL  = 0 : relaxation time not calculated
+                      I_RL  = 1 : relaxation time printed in file 'rela_time.dat'
+ 
+       * I_TF      : switch for Thomas-Fermi wave vector printing
+                      I_TF  = 0 : Thomas-Fermi wave vector not calculated
+                      I_TF  = 1 : Thomas-Fermi wave vector printed in file 'thomas-fe.dat'
+ 
+                                            ~
+ 
+       * I_DY      : switch for Debye wave vector printing
+                      I_DY  = 0 : Debye wave vector not calculated
+                      I_DY  = 1 : Debye wave vector printed in file 'debye_wav.dat'
+ 
+       * I_ME      : switch for moments of epsilon(q,omega) printing
+                      I_ME  = 0 : moments of epsilon not calculated
+                      I_ME  = 1 : moments of epsilon printed in file 'moments_e.dat'
+ 
+       * I_MS      : switch for moments of S(q,omega) printing
+                      I_MS  = 0 : moments of structure factor not calculated
+                      I_MS  = 1 : moments of structure factor printed in file 'moments_s.dat'
+ 
+       * I_ML      : switch for moments of loss function printing
+                      I_ML  = 0 : moments of loss function not calculated
+                      I_ML  = 1 : moments of loss function printed in file 'moments_l.dat'
+ 
+                                            ~
+ 
+       * I_MC      : switch for moments of conductivity printing
+                      I_MC  = 0 : moments of conductivity not calculated
+                      I_MC  = 1 : moments of conductivity printed in file 'moments_c.dat'
+ 
+       * I_DE      : switch for derivative of Re[ dielectric function ] printing
+                      I_DE  = 0 : derivative not calculated
+                      I_DE  = 1 : derivative printed in file 'deri_epsi.dat'
+ 
+       * I_ZE      : switch for Re[ dielectric function ] = 0 printing
+                      I_ZE  = 0 : function not calculated
+                      I_ZE  = 1 : function printed in file 'ree0_file.dat'
+ 
+       * I_SR      : switch for sum rules for epsilon printing
+                      I_SR  = 0 : sum rules not calculated
+                      I_ST  = 1 : sum rules printed in file 'sum_rules.dat'
+ 
+                                            ~
+ 
+       * I_CW      : switch for confinement wave function printing
+                      I_CW  = 0 : confinement wave function not calculated
+                      I_CW  = 1 : confinement wave function printed in file 'confin_wf.dat'
+ 
+       * I_CF      : switch for confinement potential printing
+                      I_CF  = 0 : confinement potential not calculated
+                      I_CF  = 1 : confinement potential printed in file 'confin_pt.dat'
+ 
+       * I_EM      : switch for effective mass printing
+                      I_EM  = 0 : effective mass not calculated
+                      I_EM  = 1 : effective mass printed in file 'effe_mass.dat'
+ 
+       * I_MF      : switch for mean free path printing
+                      I_MF  = 0 : mean free path not calculated
+                      I_MF  = 1 : mean free path printed in file 'mean_path.dat'
+ 
+                                            ~
+ 
+       * I_SP      : switch for spectral function printing
+                      I_SP  = 0 : spectral function not calculated
+                      I_SP  = 1 : spectral function printed in file 'spec_func.dat'
+ 
+       * I_SE      : switch for self-energy printing
+                      I_SE  = 0 : self-energy not calculated
+                      I_SE  = 1 : self-energy printed in file 'self_ener.dat'
+ 
+       * I_NV      : switch for Nevanlinaa function printing
+                      I_NV  = 0 : Nevanlinaa function not calculated
+                      I_NV  = 1 : Nevanlinaa function printed in file 'nevanlina.dat'
+ 
+       * I_ES      : switch for Eliashberg function printing
+                      I_ES  = 0 : Eliashberg function not calculated
+                      I_ES  = 1 : Eliashberg function printed in file 'elia_func.dat'
+ 
+                                            ~
+ 
+       * I_GR      : switch for Grüneisen parameter printing
+                      I_GR  = 0 : Grüneisen parameter not calculated
+                      I_GR  = 1 : Grüneisen parameter printed in file 'grune_par.dat'
+ 
+       * I_FD      : switch for Fermi-Dirac distribution printing
+                      I_FD  = 0 : Fermi-Dirac distribution not calculated
+                      I_FD  = 1 : Fermi-Dirac distribution printed in file 'fermi_dir.dat'
+ 
+       * I_BE      : switch for Bose-Einstein distribution printing
+                      I_BE  = 0 : Bose-Einstein distribution not calculated
+                      I_BE  = 1 : Bose-Einstein distribution printed in file 'bose_eins.dat'
+ 
+       * I_MX      : switch for Maxwell distribution printing
+                      I_MX  = 0 : Maxwell distribution not calculated
+                      I_MX  = 1 : Maxwell distribution printed in file 'maxwell_d.dat' 
+ 
+                                            ~
+ 
+       * I_SC      : switch for scale parameters  printing
+                      I_SC  = 0 : scale parameters not calculated
+                      I_SC  = 1 : scale parameters printed in file 'scale_par.dat'
+ 
+       * I_DS      : switch for density of states printing
+                      I_DS  = 0 : density of states not calculated
+                      I_DS  = 1 : density of states printed in file 'dens_stat.dat'
+ 
+       * I_SB      : switch for  subband energies printing
+                      I_SB  = 0 : subband energies not calculated
+                      I_SB  = 1 : subband energies printed in file 'subb_ener.dat'
+ 
+ *-------+---------+---------+---------+---------+---------------------------*
+ 
+       * I_GP      : switch for grand partition function printing
+                      I_GP  = 0 : grand partition function not calculated
+                      I_GP  = 1 : grand partition function printed in file 'gran_part.dat'
+ 
+       * I_PR      : switch for electronic pressure printing
+                      I_PR  = 0 : electronic pressure not calculated
+                      I_PR  = 1 : electronic pressure printed in file 'epressure.dat'
+ 
+       * I_CO      : switch for compressibility printing
+                      I_CO  = 0 : compressibility not calculated
+                      I_CO  = 1 : compressibility printed in file 'comp_file.dat'
+ 
+       * I_CP      : switch for chemical potential printing
+                      I_CP  = 0 : chemical potential not calculated
+                      I_CP  = 1 : chemical potential printed in file 'chem_pote.dat' 
+ 
+                                            ~
+ 
+       * I_BM      : switch for bulk modulus printing
+                      I_BM  = 0 : bulk modulus not calculated
+                      I_BM  = 1 : bulk modulus printed in file 'bulk_modu.dat'
+ 
+       * I_SH      : switch for shear modulus printing
+                      I_SH  = 0 : shear modulus not calculated
+                      I_SH  = 1 : shear modulus printed in file 'shear_mod.dat'
+ 
+       * I_S0      : switch for zero sound velocity printing
+                      I_S0  = 0 : zero sound velocity not calculated
+                      I_S0  = 1 : zero sound velocity printed in file 'zero_soun.dat' 
+ 
+       * I_S1      : switch for first sound velocity printing
+                      I_S1  = 0 : first sound velocity not calculated
+                      I_S1  = 1 : first sound velocity printed in file 'firs_soun.dat' 
+ 
+                                            ~
+ 
+       * I_DT      : switch for Debye temperature printing
+                      I_DT  = 0 : Debye temperature not calculated
+                      I_DT  = 1 : Debye temperature printed in file 'Debye_tmp.dat'
+ 
+       * I_PS      : switch for Pauli paramagnetic susceptibility printing
+                      I_PS  = 0 : Pauli paramagnetic susceptibility not calculated
+                      I_PS  = 1 : Pauli paramagnetic susceptibility printed in file 'para_susc.dat'
+ 
+       * I_IE      : switch for internal energy printing
+                      I_IE  = 0 : internal energy not calculated
+                      I_IE  = 1 : internal energy printed in file 'inter_ene.dat'
+ 
+       * I_EI      : switch for excess internal energy printing
+                      I_EI  = 0 : excess internal energy not calculated
+                      I_EI  = 1 : excess internal energy printed in file 'exces_ene.dat'
+ 
+                                            ~
+ 
+       * I_FH      : switch for Helmholtz free energy printing
+                      I_FH  = 0 : Helmholtz free energy not calculated
+                      I_FH  = 1 : Helmholtz free energy printed in file 'helm_free.dat'
+ 
+       * I_EY      : switch for entropy printing
+                      I_EY  = 0 : entropy not calculated
+                      I_EY  = 1 : entropy printed in file 'entropy_f.dat'
+ 
+ *-------+---------+---------+---------+---------+---------------------------*
+ 
+       * I_EF      : switch for Fermi energy printing
+                      I_EF  = 0 : Fermi energy not calculated
+                      I_EF  = 1 : Fermi energy printed in file 'fermi_ene.dat'
+ 
+       * I_KF      : switch for Fermi momentum printing
+                      I_KF  = 0 : Fermi momentum not calculated
+                      I_KF  = 1 : Fermi momentum printed in file 'fermi_vec.dat'
+ 
+       * I_VF      : switch for Fermi velocity printing
+                      I_VF  = 0 : Fermi velocity not calculated
+                      I_VF  = 1 : Fermi velocity printed in file 'fermi_vel.dat'
+ 
+       * I_TE      : switch for Fermi temperature printing
+                      I_TE  = 0 : Fermi temperature not calculated
+                      I_TE  = 1 : Fermi temperature printed in file 'fermi_tmp.dat'
+ 
+                                            ~
+ 
+       * I_DL      : switch for density of states at Fermi level printing
+                      I_DL  = 0 subband energies: density of states at Fermi level not calculated
+                      I_DL  = 1 : density of states at Fermi level printed in file 'fermi_dos.dat'
+ 
+ *-------+---------+---------+---------+---------+---------------------------*
+ 
+       * I_TW      : switch for thermal De Broglie wavelength printing
+                      I_TW  = 0 : thermal De Broglie wavelength not calculated
+                      I_TW  = 1 : thermal De Broglie wavelength printed in file 'thermal_w.dat'
+ 
+       * I_VT      : switch for thermal velocity printing
+                      I_VT  = 0 : thermal velocity not calculated
+                      I_VT  = 1 : thermal velocity printed in file 'thermal_v.dat'
+ 
+       * I_TC      : switch for thermal conductivity printing
+                      I_TC  = 0 : thermal conductivity not calculated
+                      I_TC  = 1 : thermal conductivity printed in file 'thermal_c.dat'
+ 
+ *-------+---------+---------+---------+---------+---------------------------*
+ 
+       * I_EG      : switch for ground state energy printing
+                      I_EG  = 0 : ground state energy not calculated
+                      I_EG  = 1 : ground state energy printed in file 'ground_st.dat'
+ 
+       * I_EX      : switch for exchange energy printing
+                      I_EX  = 0 : exchange energy not calculated
+                      I_EX  = 1 : exchange energy printed in file 'ex_energy.dat'
+ 
+       * I_XC      : switch for exchange correlation energy printing
+                      I_XC  = 0 : exchange correlation energy not calculated
+                      I_XC  = 1 : exchange correlation energy printed in file 'xc_energy.dat'
+ 
+       * I_EC      : switch for correlation energy printing
+                      I_EC  = 0 : correlation energy not calculated
+                      I_EC  = 1 : correlation energy printed in file 'corr_ener.dat'
+ 
+                                            ~
+ 
+       * I_HF      : switch for Hartree-Fock energy printing
+                      I_HF  = 0 : Hartree-Fock energy not calculated
+                      I_HF  = 1 : Hartree-Fock energy printed in file 'hf_energy.dat'
+ 
+       * I_EK      : switch for kinetic energy printing
+                      I_EK  = 0 : kinetic energy not calculated
+                      I_EK  = 1 : kinetic energy printed in file 'kine_ener.dat'
+ 
+       * I_EP      : switch for potential energy printing
+                      I_EP  = 0 : potential energy not calculated
+                      I_EP  = 1 : potential energy printed in file 'pote_ener.dat
+ 
+ *-------+---------+---------+---------+---------+---------------------------*
+ 
+       * I_VI      : switch for shear viscosity printing
+                      I_VI  = 0 : shear viscosity not calculated
+                      I_VI  = 1 : shear viscosity printed in file 'visc_coef.dat'
+ 
+       * I_DI      : switch for diffusion coefficient printing
+                      I_DI  = 0 : diffusion coefficient not calculated
+                      I_DI  = 1 : diffusion coefficient printed in file 'diff_coef.dat'
+ 
+ *-------+---------+---------+---------+---------+---------------------------*
+ 
+       * I_FP      : switch for fluctuation potential calculation
+                      I_FP  = 0 :  fluctuation potential not calculated
+                      I_FP  = 1 :  fluctuation potential printed in file 'fluct_pot.dat'
+ 
+       * I_EL      : switch for loss function calculation
+                      I_EL  = 0 :  loss function not calculated
+                      I_EL  = 1 :  loss function printed in file 'ener_loss.dat'
+ 
+       * I_PO      : switch for stopping power calculation
+                      I_PO  = 0 :  stopping power not calculated
+                      I_PO  = 1 :  stopping power printed in file 'stop_powe.dat'
+ 
+       * I_RF      : switch for refractive index calculation
+                      I_RF  = 0 :  refractive index not calculated
+                      I_RF  = 1 :  refractive index printed in file 'refrac_in.dat' 
+ 
+                                            ~
+ 
+       * I_VC      : switch for dynamic screened Coulomb potential V(q,omega) calculation
+                      I_RF  = 0 : dynamic screened Coulomb potential not calculated
+                      I_RF  = 1 : dynamic screened Coulomb potential printed in file 'dyna_coul.dat'
+ 
+ *-------+---------+---------+---------+---------+---------------------------*
+ 
+       * I_FN      : switch for appending the calculation type string 
+                        to the output filename
+                      I_FN  = 0 :  standard output filename
+                      I_FN  = 1 :  parameter added to filename
+ 
+       * I_WR      : switch for writing physical properties into the log file 
+                      I_WR  = 0 :  does not write
+                      I_WR  = 1 :  writes
diff --git a/src/python/msspec_dfm/__init__.py b/src/python/msspec_dfm/__init__.py
new file mode 100644
index 0000000..a3a6446
--- /dev/null
+++ b/src/python/msspec_dfm/__init__.py
@@ -0,0 +1,27 @@
+#!/usr/bin/env python
+# coding: utf-8
+#
+# Copyright © 2022 - Rennes Physics Institute
+#
+# This file is part of MsSpec-DFM.
+#
+# MsSpec-DFM is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+# MsSpec-DFM is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# You should have received a copy of the GNU General Public License
+# along with MsSpec-DFM.  If not, see <http://www.gnu.org/licenses/>.
+#
+# Source file  : src/python/msspec_dfm/__init__.py
+# Last modified: Fri, 25 Feb 2022 17:27:31 +0100
+# Committed by : Sylvain Tricot <sylvain.tricot@univ-rennes1.fr> 1645806435 +0100
+
+from msspec_dfm.version import __version__
+try:
+    from msspec_dfm.compute import compute
+except ModuleNotFoundError as err:
+    pass
diff --git a/src/python/msspec_dfm/cli.py b/src/python/msspec_dfm/cli.py
new file mode 100644
index 0000000..f9d03f0
--- /dev/null
+++ b/src/python/msspec_dfm/cli.py
@@ -0,0 +1,164 @@
+#!/usr/bin/env python
+# coding: utf-8
+#
+# Copyright © 2022 - Rennes Physics Institute
+#
+# This file is part of MsSpec-DFM.
+#
+# MsSpec-DFM is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+# MsSpec-DFM is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# You should have received a copy of the GNU General Public License
+# along with MsSpec-DFM.  If not, see <http://www.gnu.org/licenses/>.
+#
+# Source file  : src/python/msspec_dfm/cli.py
+# Last modified: Fri, 25 Feb 2022 17:27:32 +0100
+# Committed by : Sylvain Tricot <sylvain.tricot@univ-rennes1.fr> 1645806435 +0100
+
+import click
+import logging
+import os
+from msspec_dfm.input_file import InputFile
+from msspec_dfm.version import __version__
+from msspec_dfm.eps import epsilon
+from msspec_dfm import plotting
+
+@click.group(invoke_without_command=True, no_args_is_help=True)
+@click.option('--version', is_flag=True, 
+              help='Print the program version and exit.')
+@click.option('-v', '--verbose', count=True,
+              help='Increase the verbosity output. Full verbosity for -vvv')
+def main(version, verbose):
+    # Adjust the verbosity level
+    verbosity_levels = [logging.ERROR, logging.WARNING, logging.INFO, logging.DEBUG]
+    logging.basicConfig(level=verbosity_levels[min(verbose, len(verbosity_levels)-1)])
+
+    # Print the version and exit
+    if version:
+        logging.debug('Getting the version number...')
+        print(__version__)
+        exit(0)
+
+
+@main.command()
+@click.option('--input-file', default='Data/epsilon.dat', show_default=True,
+              metavar='FILE_NAME',
+              help='The input filename.')
+def generate(input_file):
+    """Generate an input file.
+
+       An input file with default parameters will be written to INPUT_FILE.
+    """
+    logging.debug("Generating the input file \'{:s}\'...".format(input_file))
+    input_data = InputFile(input_file)
+    input_data.write()
+    logging.info("Input file with default values generated in: {}".format(input_file))
+
+
+@main.command()
+@click.argument('input-file')
+@click.option('--folder', default='./Results', show_default=True,
+              metavar='FOLDER_NAME',
+              help='The output folder.')
+def compute(input_file, folder):
+    """Compute the dielectric function.
+
+       All the calculation parameters are defined in INPUT_FILE.
+       See help of the 'generate' command for a full reference of the file
+       format and all the options.
+    """
+    logging.info("Computing...")
+    logging.debug("    Input file   : \'{:s}\'".format(input_file))
+    logging.debug("    Output folder: \'{:s}\'".format(folder))
+    epsilon(input_file, folder)
+
+
+@main.command()
+@click.argument('plot-type', metavar='TYPE',
+        type=click.Choice(['diel_func', 'susc_func', 'cond_func',
+                           'loca_fiel', 'stru_fact', 'vertex_fu',
+                           'deri_epsi', 'self_ener', 'dyna_coul'],
+                           case_sensitive=False))
+@click.option('--folder', default='./Results', show_default=True, metavar='FOLDER_NAME',
+              help='The folder containing the results.')
+@click.option('--img', is_flag=True,
+              help='Select imaginery part.')
+@click.option('--bounds', nargs=2, type=float, default=[-2, 2], show_default=True,
+              metavar='LOWER UPPER',
+              help='Limits for the colorbar scale.')
+@click.option('--plot3d', is_flag=True,
+              help='Plot in 3D.')
+@click.option('--contour', is_flag=True,
+              help='Add contours.')
+@click.option('--pdeh', is_flag=True,
+              help='Add the dispersion and electron-hole curves.')
+@click.option('--levels', type=int, default=8, show_default=True,
+              help='Number of levels for contour plots.')
+@click.option('--Ef', 'Ef', type=float, default=1, show_default=True,
+              help='Fermi energy if renormalization is needed.')
+@click.option('--strides', type=int, default=64, show_default=True,
+              help='Number of strides for 3D plot. The lower, the higher the resolution.')
+def plot(plot_type, folder, img, bounds, plot3d, contour, pdeh, levels, Ef, strides):
+    """Plotting the results.
+
+       \b
+       The plot TYPE value may be one of the following values:
+         * diel_func
+         * susc_func
+         * cond_func
+         * loca_fiel
+         * stru_fact
+         * vertex_fu
+         * deri_epsi
+         * self_ener
+         * dyna_coul
+    """
+    logging.debug("Plotting...")
+    for key, value in locals().items():
+        logging.debug("    {}: {}".format(key, value))
+    
+    # data = plotting.Data(os.path.join(folder, plot_type + ".dat"))
+    # data.load(imag=img)
+
+    # pw = plotting.PlotWindow3d(data)
+    # pw.plot()
+    # pw.show()
+
+    # start by loading data
+    df_file = os.path.join(folder, 'diel_func.dat')
+    pd_file = os.path.join(folder, 'plas_disp.dat')
+    eh_file = os.path.join(folder, 'elec_hole.dat')
+    X, Y, ReZ, ImZ, pd, eh = plotting.load_data(df_file, pd_file, eh_file)
+
+    vmin, vmax = bounds
+    Z = ReZ
+    if img:
+        Z = ImZ
+
+    fig = ax = None
+
+    if not(plot3d):
+        fig, ax = plotting.plot_2d(X, Y, Z, cmap=plotting.cmap, vmin=vmin, vmax=vmax, fig=fig, ax=ax)
+    else:
+        fig, ax = plotting.plot_3d(X, Y, Z, cmap=plotting.cmap, vmin=vmin, vmax=vmax, fig=fig, ax=ax, strides=strides)
+
+    if contour:
+        fig, ax = plotting.plot_contour(X, Y, ReZ, levels=levels, vmin=vmin, vmax=vmax,
+                            cmap=None, colors='black', fig=fig, ax=ax)
+
+    if pdeh:
+        fig, ax = plotting.plot_pdeh(pd, eh, Ef=Ef, fig=fig, ax=ax)
+
+    plotting.entitle(fig, ax, img=img)
+    plotting.plt.show()
+
+
+
+
+if __name__ == '__main__':
+    main()
diff --git a/src/python/msspec_dfm/compute.py b/src/python/msspec_dfm/compute.py
new file mode 100644
index 0000000..cb47bf6
--- /dev/null
+++ b/src/python/msspec_dfm/compute.py
@@ -0,0 +1,63 @@
+#!/usr/bin/env python
+# coding: utf-8
+#
+# Copyright © 2022 - Rennes Physics Institute
+#
+# This file is part of MsSpec-DFM.
+#
+# MsSpec-DFM is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+# MsSpec-DFM is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# You should have received a copy of the GNU General Public License
+# along with MsSpec-DFM.  If not, see <http://www.gnu.org/licenses/>.
+#
+# Source file  : src/python/msspec_dfm/version.py
+# Last modified: Fri, 25 Feb 2022 17:27:32 +0100
+# Committed by : Sylvain Tricot <sylvain.tricot@univ-rennes1.fr> 1645806435 +0100
+
+import os
+import sys
+from tempfile import NamedTemporaryFile, TemporaryDirectory
+
+from matplotlib import pyplot as plt
+import numpy as np
+
+from msspec_dfm.input_file import InputFile
+from msspec_dfm.eps import epsilon
+
+from contextlib import redirect_stdout
+
+def compute(filename=None, folder=None, logfile='-', **parameters):
+    # If filename is None, a temporary name is provided
+    if filename is None:
+        filename = NamedTemporaryFile().name
+    
+    # If folder is None, a temporary name is provided
+    if folder is None:
+        folder = TemporaryDirectory().name
+
+    if logfile != '-':
+        sys.stdout.flush()
+        old_fd = os.dup(1)
+        os.close(1)
+        os.open(logfile, os.O_WRONLY|os.O_CREAT)
+
+    data = {}
+    input_file = InputFile(filename, **parameters)
+    input_file.write()
+    epsilon(filename, folder)
+    for root, dirs, files in os.walk(folder):
+        for f in files:
+            data[os.path.splitext(f)[0]] = np.loadtxt(os.path.join(root, f))
+
+    if logfile != '-':
+        os.close(1)
+        os.dup(old_fd)
+        os.close(old_fd)
+
+    return data
diff --git a/src/python/msspec_dfm/input_file.py b/src/python/msspec_dfm/input_file.py
new file mode 100644
index 0000000..bd3d643
--- /dev/null
+++ b/src/python/msspec_dfm/input_file.py
@@ -0,0 +1,498 @@
+#!/usr/bin/env python
+# coding: utf-8
+#
+# Copyright © 2022 - Rennes Physics Institute
+#
+# This file is part of MsSpec-DFM.
+#
+# MsSpec-DFM is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+# MsSpec-DFM is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# You should have received a copy of the GNU General Public License
+# along with MsSpec-DFM.  If not, see <http://www.gnu.org/licenses/>.
+#
+# Source file  : src/python/msspec_dfm/version.py
+# Last modified: Fri, 25 Feb 2022 17:27:32 +0100
+# Committed by : Sylvain Tricot <sylvain.tricot@univ-rennes1.fr> 1645806435 +0100
+
+import os
+
+class InputFile:
+    defaults = {
+            # GENERAL PARAMETERS
+            # (q, omega, r)
+            'Q_MIN'    : (0.010, '13.3f'),
+            'Q_MAX'    : (4.000, '13.3f'),
+            'N_Q'      : (1000, '10d'),
+            'E_MIN'    : (0.010, '13.3f'),
+            'E_MAX'    : (4.000, '13.3f'),
+            'N_E'      : (2000, '10d'),
+            'R_MIN'    : (0.010, '13.3f'),
+            'R_MAX'    : (4.000, '13.3f'),
+            'N_R'      : (2000, '>10d'),
+            # Material's properties
+            'RS'       : (2.079, '13.3f'),
+            'MSOM'     : (1.000, '13.3f'),
+            'MAT_TYP'  : ('SCHRO', '>10s'),
+            'EPS_B'    : (1.000, '13.3f'),
+            # External fields
+            'T'        : (1.00, '12.2f'),
+            'E'        : (0.000, '13.3f'),
+            'H'        : (0.000, '13.3f'),
+            'FLD'      : ('NO', '>10s'),
+            # System's dimension
+            'DIM'      : ('3D', '>10s'),
+            # Confinement
+            'R0'       : (0.000, '13.3f'),
+            'L'        : (0.000, '13.3f'),
+            'OM0'      : (0.00, '12.2f'),
+            'CONFIN'   : ('NO-CONF', '>10s'),
+            # Multilayer structure
+            'DL'       : (0.000, '13.3f'),
+            'D1'       : (0.000, '13.3f'),
+            'N_DEP'    : (0.00, '12.2f'),
+            'N_INV'    : (0.00, '12.2f'),
+            'H_TYPE'   : ('NONE', '>10s'),
+            'EPS_1'    : (12.000, '13.3f'),
+            'EPS_2'    : (12.000, '13.3f'),
+            # Units
+            'UNIT'     : ('SIU', '>10s'),
+            'UNIK'     : ('SI', '>10s'),
+            # Screening
+            'SC_TYPE'  : ('NO', '>10s'),
+            # Plasma type
+            'PL_TYPE'  : ('OCP', '>10s'),
+            'ZION'     : (1.000, '13.3f'),
+            'ZION2'    : (0.000, '13.3f'),
+            # Calculation type
+            'CAL_TYPE' : ('QUANTUM', '>10s'),
+            # DIELECTRIC FUNCTION
+            'ESTDY'    : ('DYNAMIC', '>10s'),
+            'EPS_T'    : ('LONG', '>10s'),
+            'D_FUNC'   : ('NEV3', '>10s'),
+            'I_T'      : (0, '>10d'),
+            'NEV_TYPE' : ('STA2', '>10s'),
+            'MEM_TYPE' : ('COCO', '>10s'),
+            'ALPHA'    : (0.500, '13.3f'),
+            'BETA'     : (0.600, '13.3f'),
+            # Analytical plasmon dispersion
+            'PL_DISP'  : ('RP2_MOD', '>10s'),
+            # Local-field corrections
+            'GSTDY'    : ('STATIC', '>10s'),
+            'GQ_TYPE'  : ('ICUT', '>10s'),
+            'IQ_TYPE'  : ('IKP', '>10s'),
+            'LANDAU'   : ('NONE', '>10s'),
+            'GQO_TYPE' : ('NONE', '>10s'),
+            'G0_TYPE'  : ('EC', '>10s'),
+            'GI_TYPE'  : ('EC', '>10s'),
+            # Damping
+            'DAMPING'  : ('RELA', '>10s'),    
+            'LT_TYPE'  : ('NONE', '>10s'),
+            'RT_TYPE'  : ('EX1', '>10s'),
+            'DR_TYPE'  : ('NONE', '>10s'),
+            'DC_TYPE'  : ('EXTE', '>10s'),
+            'VI_TYPE'  : ('NONE', '>10s'),
+            'EE_TYPE'  : ('NONE', '>10s'),
+            'EP_TYPE'  : ('NONE', '>10s'),
+            'EI_TYPE'  : ('NONE', '>10s'),
+            'IP_TYPE'  : ('NONE', '>10s'),
+            'PD_TYPE'  : ('NONE', '>10s'),
+            'QD_TYPE'  : ('LORE', '>10s'),
+            'ZETA'     : (1.250, '13.3f'),
+            'D_VALUE_1': (0.500, '13.3f'),
+            'POWER_1'  : ('FEMTO', '>10s'),
+            'EK'       : (50.00, '12.2f'),
+            'D_VALUE_2': (5.000, '13.3f'),
+            'POWER_2'  : ('FEMTO', '>10s'),
+            'PCT'      : (0.80, '12.2f'),
+            # Electron-electron interaction
+            'INT_POT'  : ('COULO', '>10s'),
+            'S'        : (2.590, '13.3f'),
+            'EPS'      : (470.000, '13.3f'),
+            'DELTA'    : (1.500, '13.3f'),
+            'RC'       : (1.500, '13.3f'),
+            'ALF'      : (5.000, '13.3f'),
+            'M'        : (7, '10d'),
+            'N'        : (28, '10d'),         
+            'A1'       : (1.000, '13.3f'),
+            'A2'       : (1.000, '13.3f'),
+            'A3'       : (1.000, '13.3f'),
+            'A4'       : (1.000, '13.3f'),
+            # Electron-phonon interaction
+            'EP_C'     :  (1500.000, '13.3f'),
+            'DEBYE_T'  :  (1500.000, '13.3f'), 
+            'NA'       :  (12.000, '13.3f'),
+            'MA'       :  (0.000, '13.3f'),
+            'RA'       :  (0.000, '13.3f'),
+            # Electron-impurity interaction
+            'NI'       : (0.000, '13.3f'),
+            'EI_C'     : (0.000, '13.3f'),
+            # Classical fluid parameters
+            'CF_TYPE'  : ('SHS', '>10s'),
+            'PF_TYPE'  : ('HSM', '>10s'),
+            'SL_TYPE'  : ('HSP', '>10s'), 
+            # STRUCTURE FACTOR
+            'SSTDY'    : ('DYNAMIC', '>10s'),
+            'SQ_TYPE'  : ('PKA', '>10s'),
+            'SQO_TYPE' : ('EPS', '>10s'),
+            # PAIR CORRELATION FUNCTION
+            'GR_TYPE'  : ('SHA', '>10s'),
+            'GR0_MODE' : ('KIMB', '>10s'),
+            # PAIR DISTRIBUTION FUNCTION
+            'RH_TYPE'  : ('CEG', '>10s'),
+            # SPECTRAL FUNCTION
+            'SPF_TYPE' : ('NAIC', '>10s'),
+            # ENERGY CALCULATIONS
+            'EC_TYPE'  : ('GGSB_G', '>10s'),
+            'FXC_TYPE' : ('NO', '>10s'),
+            'EXC_TYPE' : ('NO', '>10s'),
+            'EX_TYPE'  : ('HEG', '>10s'),
+            'EK_TYPE'  : ('HEG', '>10s'),         
+            # SPIN POLARIZATION
+            'IMODE'    : (1, '10d'),
+            'XI'       : (0.000, '13.3f'),
+            # THERMODYNAMIC PROPERTIES
+            'TH_PROP'  : ('QUAN', '>10s'),
+            'GP_TYPE'  : ('IK0', '>10s'),
+            # ELECTRON MEAN FREE PATH
+            'EK_INI'   : (150.00, '12.2f'),
+            'EK_FIN'   : (200.00, '12.2f'),
+            # CALCULATIONS OF MOMENTS
+            'N_M'      : (1, '10d'),
+            'M_TYPE'   : ('SQO', '>10s'),
+            # INCOMING ION BEAM
+            'Z_BEAM'   : (1.00, '12.2f'),
+            'EK_BEAM'  : (15000.00, '12.2f'),
+            # OUTPUT CALCULATIONS/PRINTING
+            'I_DF'     : (1, '10d'),
+            'I_PZ'     : (0, '10d'),
+            'I_SU'     : (0, '10d'),
+            'I_CD'     : (0, '10d'),
+            'I_PD'     : (1, '10d'),
+            'I_EH'     : (1, '10d'),
+            'I_E2'     : (0, '10d'),
+            'I_CK'     : (0, '10d'),
+            'I_CR'     : (0, '10d'),
+            'I_PK'     : (0, '10d'),
+            'I_LF'     : (0, '10d'),
+            'I_IQ'     : (0, '10d'),
+            'I_SF'     : (0, '10d'),
+            'I_PC'     : (0, '10d'),
+            'I_P2'     : (0, '10d'),
+            'I_VX'     : (0, '10d'),
+            'I_DC'     : (0, '10d'),
+            'I_MD'     : (0, '10d'),
+            'I_LD'     : (0, '10d'),
+            'I_DP'     : (0, '10d'),
+            'I_LT'     : (0, '10d'),
+            'I_BR'     : (0, '10d'),
+            'I_PE'     : (0, '10d'),
+            'I_QC'     : (0, '10d'),
+            'I_RL'     : (0, '10d'),
+            'I_KS'     : (0, '10d'),
+            'I_OQ'     : (0, '10d'),
+            'I_ME'     : (0, '10d'),
+            'I_MS'     : (0, '10d'),
+            'I_ML'     : (0, '10d'),
+            'I_MC'     : (0, '10d'),
+            'I_DE'     : (0, '10d'),
+            'I_ZE'     : (0, '10d'),
+            'I_SR'     : (0, '10d'),
+            'I_CW'     : (0, '10d'),
+            'I_CF'     : (0, '10d'),
+            'I_EM'     : (0, '10d'),
+            'I_MF'     : (0, '10d'),
+            'I_SP'     : (0, '10d'),
+            'I_SE'     : (0, '10d'),
+            'I_SB'     : (0, '10d'),
+            'I_ES'     : (0, '10d'),
+            'I_GR'     : (0, '10d'),
+            'I_FD'     : (0, '10d'),
+            'I_BE'     : (0, '10d'),
+            'I_MX'     : (0, '10d'),
+            'I_SC'     : (0, '10d'),
+            'I_DS'     : (0, '10d'),
+            'I_NV'     : (0, '10d'),
+            'I_MT'     : (0, '10d'),
+            'I_GP'     : (0, '10d'),
+            'I_PR'     : (0, '10d'),
+            'I_CO'     : (0, '10d'),
+            'I_CP'     : (0, '10d'),
+            'I_BM'     : (0, '10d'),
+            'I_SH'     : (0, '10d'),
+            'I_S0'     : (0, '10d'),
+            'I_S1'     : (0, '10d'),
+            'I_DT'     : (0, '10d'),
+            'I_PS'     : (0, '10d'),
+            'I_IE'     : (0, '10d'),
+            'I_EI'     : (0, '10d'),
+            'I_FH'     : (0, '10d'),
+            'I_EY'     : (0, '10d'),
+            'I_EF'     : (1, '10d'),
+            'I_KF'     : (1, '10d'),
+            'I_VF'     : (1, '10d'),
+            'I_TE'     : (1, '10d'),
+            'I_DL'     : (1, '10d'),
+            'I_TW'     : (0, '10d'),
+            'I_VT'     : (0, '10d'),
+            'I_TC'     : (0, '10d'),
+            'I_EG'     : (0, '10d'),
+            'I_EX'     : (0, '10d'),
+            'I_XC'     : (0, '10d'),
+            'I_EC'     : (0, '10d'),
+            'I_HF'     : (0, '10d'),
+            'I_EK'     : (0, '10d'),
+            'I_EP'     : (0, '10d'),
+            'I_VI'     : (0, '10d'),
+            'I_DI'     : (0, '10d'),
+            'I_FP'     : (0, '10d'),
+            'I_EL'     : (0, '10d'),
+            'I_PO'     : (0, '10d'),
+            'I_RF'     : (0, '10d'),
+            'I_VC'     : (0, '10d'),
+            'I_FN'     : (0, '10d'),
+            'I_WR'     : (2, '10d'),
+            'I_TI'     : (0, '10d'),
+            }
+
+    def __init__(self, filename, **parameters):
+        self.filename = filename
+        self.parameters = self.defaults
+        for key, value in parameters.items():
+            fmt = self.parameters[key][1]
+            self.parameters.update({key:(value, fmt)})
+
+
+    def _stack(self, *keys, comments=""):
+        params = []
+        for key in keys:
+            value, fmt = self.parameters[key]
+            params.append((key, value, fmt))
+        line = [' ',] * 49
+        labels = []
+        for i, (label, value, fmt) in enumerate(params):
+            labels.append(label)
+            fmts = ' ' * (10 * i) + '{{:{}}}'.format(fmt)
+            line_ = fmts.format(value)
+            for ichar, char in enumerate(line_):
+                if char != ' ':
+                    line[ichar] = char
+
+        # add labels
+        labels = list(','.join(labels))
+        line += labels
+
+        # Pad with spaces if needed
+        line += ' ' * max(78 - len(line), 0)
+
+        # Add stars
+        line[1] = '*'
+        line += '*'
+
+        # Add comments
+        line += comments
+
+        # Add CR
+        line += '\n'
+        
+        return ''.join(line)
+    
+
+    def write(self):
+        content  = ""
+        content += " ******************************************************************************\n"
+        content += " *                     MsSpec DIELECTRIC FUNCTION MODULE                      *\n"
+        content += " ******************************************************************************\n"
+        content += " *=======+=========+=========+=========+=========+============================*\n"
+        content += " *                           GENERAL PARAMETERS :                             *\n"
+        content += " *=======+=========+=========+=========+=========+============================*\n"
+        content += " *                        (q,omega,r)  :                                      *\n"
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += self._stack('Q_MIN', 'Q_MAX', 'N_Q', comments=" in units of k_F")
+        content += self._stack('E_MIN', 'E_MAX', 'N_E', comments=" in units of E_F")
+        content += self._stack('R_MIN', 'R_MAX', 'N_R', comments=" in units of 1/k_F")
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += " *                        Material's properties :                             *\n"
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += self._stack('RS', 'MSOM', 'MAT_TYP', 'EPS_B')
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += " *                        External fields :                                   *\n"
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += self._stack('T', 'E', 'H', 'FLD')
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += " *                        System's dimension :                                *\n"
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += self._stack('DIM')
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += " *                        Confinement :                                       *\n"
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += self._stack('R0', 'L', 'OM0', 'CONFIN')
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += " *                        Multilayer structure :                              *\n"
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += self._stack('DL', 'D1', 'N_DEP', 'N_INV', comments="   --- EPS_1 ---")
+        content += self._stack('H_TYPE', 'EPS_1', 'EPS_2',   comments="       EPS_2")
+        content += " *-------+---------+---------+---------+---------+----------------------------*   --- EPS_1 ---\n"
+        content += " *                        Units :                                             *\n"
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += self._stack('UNIT', 'UNIK')
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += " *                        Screening :                                         *\n"
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += self._stack('SC_TYPE')
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += " *                        Plasma type :                                       *\n"
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += self._stack('PL_TYPE', 'ZION', 'ZION2')
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += " *                        Calculation type :                                  *\n"
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += self._stack('CAL_TYPE')
+        content += " *=======+=========+=========+=========+=========+============================*\n"
+        content += " *                        DIELECTRIC FUNCTION :                               *\n"
+        content += " *=======+=========+=========+=========+=========+============================*\n"
+        content += self._stack('ESTDY', 'EPS_T', 'D_FUNC', 'I_T')       
+        content += self._stack('NEV_TYPE', 'MEM_TYPE', 'ALPHA', 'BETA')
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += " *                        Analytical plasmon dispersion :                     *\n"
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += self._stack('PL_DISP')
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += " *                        Local-field corrections                             *\n"
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += self._stack('GSTDY', 'GQ_TYPE', 'IQ_TYPE')
+        content += self._stack('LANDAU', 'GQO_TYPE', 'G0_TYPE', 'GI_TYPE')
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += " *                        Damping :                                           *\n"
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += self._stack('DAMPING', 'LT_TYPE', 'RT_TYPE')
+        content += self._stack('DR_TYPE', 'DC_TYPE', 'VI_TYPE')
+        content += self._stack('EE_TYPE', 'EP_TYPE', 'EI_TYPE')
+        content += self._stack('IP_TYPE', 'PD_TYPE', 'QD_TYPE', 'ZETA')
+        content += self._stack('D_VALUE_1', 'POWER_1', 'EK')
+        content += self._stack('D_VALUE_2', 'POWER_2', 'PCT')
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += " *                        Electron-electron interaction :                     *\n"
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += self._stack('INT_POT','S','EPS','DELTA')
+        content += self._stack('RC','ALF','M','N')
+        content += self._stack('A1','A2','A3','A4')
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += " *                        Electron-phonon interaction :                       *\n"
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += self._stack('EP_C','DEBYE_T')
+        content += self._stack('NA','MA','RA')
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += " *                        Electron-impurity interaction :                     *\n"
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += self._stack('NI','EI_C')
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += " *                        Classical fluid parameters :                        *\n"
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += self._stack('CF_TYPE','PF_TYPE','SL_TYPE')
+        content += " *=======+=========+=========+=========+=========+============================*\n"
+        content += " *                        STRUCTURE FACTOR :                                  *\n"
+        content += " *=======+=========+=========+=========+=========+============================*\n"
+        content += self._stack('SSTDY','SQ_TYPE','SQO_TYPE')
+        content += " *=======+=========+=========+=========+=========+============================*\n"
+        content += " *                        PAIR CORRELATION FUNCTION :                         *\n"
+        content += " *=======+=========+=========+=========+=========+============================*\n"
+        content += self._stack('GR_TYPE','GR0_MODE')
+        content += " *=======+=========+=========+=========+=========+============================*\n"
+        content += " *                        PAIR DISTRIBUTION FUNCTION :                        *\n"
+        content += " *=======+=========+=========+=========+=========+============================*\n"
+        content += self._stack('RH_TYPE')
+        content += " *=======+=========+=========+=========+=========+============================*\n"
+        content += " *                        SPECTRAL FUNCTION :                                 *\n"
+        content += " *=======+=========+=========+=========+=========+============================*\n"
+        content += self._stack('SPF_TYPE')
+        content += " *=======+=========+=========+=========+=========+============================*\n"
+        content += " *                        ENERGY CALCULATIONS :                               *\n"
+        content += " *=======+=========+=========+=========+=========+============================*\n"
+        content += self._stack('EC_TYPE','FXC_TYPE','EXC_TYPE')
+        content += self._stack('EX_TYPE','EK_TYPE')
+        content += " *=======+=========+=========+=========+=========+============================*\n"
+        content += " *                        SPIN POLARIZATION :                                 *\n"
+        content += " *=======+=========+=========+=========+=========+============================*\n"
+        content += self._stack('IMODE','XI')
+        content += " *=======+=========+=========+=========+=========+============================*\n"
+        content += " *                        THERMODYNAMIC PROPERTIES :                          *\n"
+        content += " *=======+=========+=========+=========+=========+============================*\n"
+        content += self._stack('TH_PROP','GP_TYPE')
+        content += " *=======+=========+=========+=========+=========+============================*\n"
+        content += " *                        ELECTRON MEAN FREE PATH :                           *\n"
+        content += " *=======+=========+=========+=========+=========+============================*\n"
+        content += self._stack('EK_INI','EK_FIN')
+        content += " *=======+=========+=========+=========+=========+============================*\n"
+        content += " *                        CALCULATION OF MOMENTS :                            *\n"
+        content += " *=======+=========+=========+=========+=========+============================*\n"
+        content += self._stack('N_M','M_TYPE')
+        content += " *=======+=========+=========+=========+=========+============================*\n"
+        content += " *                        INCOMING ION BEAM :                                 *\n"
+        content += " *=======+=========+=========+=========+=========+============================*\n"
+        content += self._stack('Z_BEAM', 'EK_BEAM')
+        content += " *=======+=========+=========+=========+=========+============================*\n"
+        content += " *                        OUTPUT CALCULATIONS/PRINTING :                      *\n"
+        content += " *=======+=========+=========+=========+=========+============================*\n"
+        content += self._stack('I_DF','I_PZ','I_SU','I_CD')
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += self._stack('I_PD','I_EH','I_E2','I_CK')
+        content += self._stack('I_CR','I_PK')
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += self._stack('I_LF','I_IQ','I_SF','I_PC')
+        content += self._stack('I_P2','I_VX','I_DC','I_MD')
+        content += self._stack('I_LD','I_DP','I_LT','I_BR')
+        content += self._stack('I_PE','I_QC','I_RL','I_KS')
+        content += self._stack('I_OQ','I_ME','I_MS','I_ML')
+        content += self._stack('I_MC','I_DE','I_ZE','I_SR')
+        content += self._stack('I_CW','I_CF','I_EM','I_MF')
+        content += self._stack('I_SP','I_SE','I_SB','I_ES')
+        content += self._stack('I_GR','I_FD','I_BE','I_MX')
+        content += self._stack('I_SC','I_DS','I_NV','I_MT')
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += self._stack('I_GP','I_PR','I_CO','I_CP')
+        content += self._stack('I_BM','I_SH','I_S0','I_S1')
+        content += self._stack('I_DT','I_PS','I_IE','I_EI')
+        content += self._stack('I_FH','I_EY')
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += self._stack('I_EF','I_KF','I_VF','I_TE')
+        content += self._stack('I_DL')
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += self._stack('I_TW','I_VT','I_TC')
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += self._stack('I_EG','I_EX','I_XC','I_EC')
+        content += self._stack('I_HF','I_EK','I_EP')
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += self._stack('I_VI','I_DI')
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += self._stack('I_FP','I_EL','I_PO','I_RF')
+        content += self._stack('I_VC')
+        content += " *-------+---------+---------+---------+---------+----------------------------*\n"
+        content += self._stack('I_FN','I_WR','I_TI')
+        content += " *=======+=========+=========+=========+=========+============================*\n"
+        content += " *                                 INPUT FILES :                              *\n"
+        content += " *----------------------------------------------------------------------------*\n"
+        content += " *           NAME                    UNIT                TYPE                 *\n"
+        content += " *=======+======================+======+=========+============================*\n"
+        content += " *       epsilon.dat                   5         INPUT DATA FILE              *\n"
+        content += " *=======+======================+======+=========+============================*\n"
+        content += " *                                OUTPUT FILES :                              *\n"
+        content += " *----------------------------------------------------------------------------*\n"
+        content += " *           NAME                    UNIT                TYPE                 *\n"
+        content += " *=======+======================+======+=========+============================*\n"
+        content += " *       epsilon.lis                   6         CHECK FILE                   *\n"
+        content += " *=======+======================+======+=========+============================*\n"
+        content += " *                             END OF THE DATA FILE                           *\n"
+        content += " *============================================================================*\n"
+        content += " ******************************************************************************\n"
+
+        abs_path = os.path.abspath(self.filename)
+        dir_path = os.path.dirname(abs_path)
+        os.makedirs(dir_path, exist_ok=True)
+        with open(self.filename, 'w') as fd:
+            fd.write(content)
diff --git a/src/python/msspec_dfm/plotting.py b/src/python/msspec_dfm/plotting.py
new file mode 100644
index 0000000..e7972bb
--- /dev/null
+++ b/src/python/msspec_dfm/plotting.py
@@ -0,0 +1,172 @@
+#!/usr/bin/env python
+#
+# Copyright © 2020-2020 - Rennes Institute of Physics.
+#
+# This file is part of plotdf.
+#
+# plotdf is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# plotdf is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with plotdf.  If not, see <http://www.gnu.org/licenses/>.
+#
+# Source file  : src/old_plotdf.py
+# Last modified: Tue, 27 Apr 2021 11:00:13 +0200
+# Committed by : Sylvain Tricot <sylvain.tricot@univ-rennes1.fr>
+
+import sys
+
+try:
+    from matplotlib import pyplot as plt
+    from mpl_toolkits.mplot3d import Axes3D
+    from matplotlib import cm
+    from matplotlib.colorbar import Colorbar
+except ImportError:
+    print('You need matplotlib to run this script!')
+    exit(-1)
+
+try:
+    import numpy as np
+except ImportError:
+    print('You need NumPy to run this script!')
+    exit(-1)
+
+try:
+    import argparse
+except ImportError as err:
+    print('Please, install the package \"{}\" to run that script.'.format(err.name))
+    exit(-1)
+
+try:
+    import logging
+except ImportError as err:
+    print('Please, install the package \"{}\" to run that script.'.format(err.name))
+    exit(-1)
+
+
+
+
+
+# Choose diverging colormap
+# (PiYG, PRGn, BrBG, PuOr, RdGy, RdBu, RdYlBu, RdYlGn, Spectral, coolwarm, bwr, seismic)
+
+# custom cmap
+cmap = cm.bwr.from_list("custom_cmap", [
+                        (0.00, (.6, 0.8, 1.0)),
+                        (0.48, (0.2, 0.2, .8)),
+                        (0.50, (1, 1, 1)),
+                        (0.52, (1., 0., 0.)),
+                        (1.00, (1.0, 0.8, 0)),
+                        ])
+
+#cmap = cm.bwr
+
+def load_data(df='diel_func.dat', pd='plas_disp.dat', eh='elec_hole.dat'):
+    logging.info('loading data, please wait...')
+    # load data
+    logging.debug('loading {:s} file'.format(df))
+    data = np.loadtxt(df)
+    logging.debug('loading {:s} file'.format(pd))
+    pd = np.loadtxt(pd)
+    logging.debug('loading {:s} file'.format(eh))
+    eh = np.loadtxt(eh)
+
+    # convert to grid
+    logging.debug('Creating the grid')
+    x = np.unique(data[:,0])
+    y = np.unique(data[:,1])
+
+    X, Y = np.meshgrid(x, y)
+    size = (len(x), len(y))
+    ReZ = data[:,2].reshape(size).T
+    ImZ = data[:,3].reshape(size).T
+
+    logging.debug('loading data done.')
+
+    return X, Y, ReZ, ImZ, pd, eh
+
+def plot_2d(X, Y, Z, cmap, fig=None, ax=None, vmin=None, vmax=None):
+    # plotting
+    if fig is None:
+        fig = plt.figure()
+    if ax is None:
+        ax = fig.add_subplot(111)
+
+    xmin, xmax, ymin, ymax = [np.min(X), np.max(X), np.min(Y), np.max(Y)]
+    extent = [xmin, xmax, ymin, ymax]
+    im = ax.imshow(Z, cmap=cmap, aspect='auto', origin='lower', vmin=vmin, vmax=vmax, extent=extent,
+               interpolation='bilinear')
+    ax.set_xlim(None, xmax)
+    ax.set_ylim(None, ymax)
+
+    # colorbar
+    cb_val = np.linspace(vmin, vmax, 9, endpoint=True)
+    #cb_lbl = [f"{_:.1f}" for _ in cb_val]
+    cb_lbl = ["{:.1f}".format(_) for _ in cb_val]
+    cb_lbl[0] = "$\leq$ {:.1f}".format(cb_val[0])
+    cb_lbl[-1] = "$\geq$ {:.1f}".format(cb_val[-1])
+    cb = fig.colorbar(im, ax=ax, ticks=cb_val)
+    cb.ax.set_yticklabels(cb_lbl)
+
+    return fig, ax
+
+
+def plot_contour(X, Y, Z, colors='black', cmap=None, fig=None, ax=None, levels=8,
+                 vmin=None, vmax=None):
+    # plotting
+    if fig is None:
+        fig = plt.figure()
+    if ax is None:
+        ax = fig.add_subplot(111)
+
+    xmin, xmax, ymin, ymax = [np.min(X), np.max(X), np.min(Y), np.max(Y)]
+    extent = [xmin, xmax, ymin, ymax]
+    cset = ax.contour(X, Y, Z, zdir='z', levels=np.linspace(vmin,vmax,levels), offset=np.min(Z),
+                      colors=colors, cmap=cmap)
+    ax.clabel(cset, cset.levels, inline=True, fontsize=10)
+
+    ax.set_xlim(None, xmax)
+    ax.set_ylim(None, ymax)
+
+    return fig, ax
+
+
+# Plot the 3D surface
+def plot_3d(X, Y, Z, cmap=None, fig=None, ax=None, vmin=None, vmax=None, strides=64):
+    # plotting
+    if fig is None:
+        fig = plt.figure()
+    if ax is None:
+        ax = fig.add_subplot(111, projection='3d')
+    ax.plot_surface(X, Y, Z, vmin=vmin, vmax=vmax, rstride=strides, cstride=strides, alpha=1., cmap=cmap)
+
+    return fig, ax
+
+
+def plot_pdeh(pd, eh, Ef=1, color='black', fig=None, ax=None):
+    # plotting
+    if fig is None:
+        fig = plt.figure()
+    if ax is None:
+        ax = fig.add_subplot(111)
+
+    ax.plot(pd[:,0], pd[:,1], color=color, linestyle="--", label="Plasmon energy")
+    ax.plot(eh[:,0], eh[:,1]/Ef, color=color, linestyle=":", label=r"e-h pair continuum $\omega_+$")
+    ax.plot(eh[:,0], np.abs(eh[:,2]/Ef), color=color, linestyle="-.", label=r"e-h pair continuum $\omega_-$")
+    ax.legend()
+
+    return fig, ax
+
+
+def entitle(fig, ax, img=False):
+    title = r"$\Im(\epsilon)$" if img else r"$\Re(\epsilon)$"
+    ax.set_title(title)
+    ax.set_xlabel(r"$q/k_F$")
+    ax.set_ylabel(r"$E/E_F$")
diff --git a/src/python/msspec_dfm/version.py b/src/python/msspec_dfm/version.py
new file mode 100644
index 0000000..b6899cf
--- /dev/null
+++ b/src/python/msspec_dfm/version.py
@@ -0,0 +1,54 @@
+#!/usr/bin/env python
+# coding: utf-8
+#
+# Copyright © 2022 - Rennes Physics Institute
+#
+# This file is part of MsSpec-DFM.
+#
+# MsSpec-DFM is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+# MsSpec-DFM is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# You should have received a copy of the GNU General Public License
+# along with MsSpec-DFM.  If not, see <http://www.gnu.org/licenses/>.
+#
+# Source file  : src/python/msspec_dfm/version.py
+# Last modified: Fri, 25 Feb 2022 17:27:32 +0100
+# Committed by : Sylvain Tricot <sylvain.tricot@univ-rennes1.fr> 1645806435 +0100
+
+import os
+
+from pkg_resources import DistributionNotFound
+from pkg_resources import get_distribution
+from pkg_resources import parse_version
+
+# find the version number
+# 1- Try to read it from the git info
+# 2- If it fails, try to read it from the distribution file
+# 3- If it fails, try to read it from the VERSION file
+
+try:
+    from setuptools_scm import get_version
+    v = get_version(root='../../', relative_to=__file__, version_scheme="post-release")
+    v = parse_version(v)
+    if v._version.post[-1] == 0:
+        __version__ = v.base_version
+    else:
+        __version__ = v.public
+except Exception as err:
+    try:
+        __version__ = get_distribution(__name__.strip('.version')).version
+    except Exception as err:
+        try:
+            thisfile_path = os.path.abspath(__file__)
+            thisfile_dir = os.path.dirname(thisfile_path)
+            versionfile = os.path.join(thisfile_dir, "../VERSION")
+            with open(versionfile, "r") as fd:
+                __version__ = fd.readline()
+        except Exception as err:
+            #print("Unable to get the version number!")
+            __version__ = "0.0.0"
diff --git a/src/python/pip.freeze b/src/python/pip.freeze
new file mode 100644
index 0000000..e7e4b4a
--- /dev/null
+++ b/src/python/pip.freeze
@@ -0,0 +1,3 @@
+matplotlib
+click
+click-man
diff --git a/src/python/setup.py b/src/python/setup.py
new file mode 100644
index 0000000..58d9582
--- /dev/null
+++ b/src/python/setup.py
@@ -0,0 +1,65 @@
+#!/usr/bin/env python
+#
+# Copyright © 2022 - Rennes Physics Institute
+#
+# This file is part of MsSpec-DFM.
+#
+# MsSpec-DFM is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+# MsSpec-DFM is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# You should have received a copy of the GNU General Public License
+# along with MsSpec-DFM.  If not, see <http://www.gnu.org/licenses/>.
+#
+# Source file  : src/python/setup.py
+# Last modified: Fri, 25 Feb 2022 17:27:32 +0100
+# Committed by : Sylvain Tricot <sylvain.tricot@univ-rennes1.fr> 1645806435 +0100
+
+import glob
+import sys
+from setuptools import setup, find_packages
+from msspec_dfm.version import __version__
+
+with open('pip.freeze', 'r') as fd:
+    REQUIREMENTS = fd.read().strip().split('\n')
+
+if __name__ == "__main__":
+    setup(name='msspec_dfm',
+          version=__version__,
+          include_package_data=True,
+          packages=find_packages(include='msspec_dfm.*'),
+          install_requires=REQUIREMENTS,
+          data_files = [('share/man/man1', glob.glob('man/pages/*.gz'))],
+
+          author='Didier Sébilleau, Aditi Mandhal, Sylvain Tricot',
+          author_email='sylvain.tricot@univ-rennes1.fr',
+          maintainer='Sylvain Tricot',
+          maintainer_email='sylvain.tricot@univ-rennes1.fr',
+          url='https://git.ipr.univ-rennes1.fr/epsi/MsSpec-DFM',
+          description='',
+          long_description="",
+          #download_url='',
+          # See https://pypi.python.org/pypi?%3Aaction=list_classifiers
+          classifiers=[
+            'Development Status :: 3 - Alpha',
+            'Environment :: Console',
+            'Intended Audience :: Science/Research',
+            'License :: OSI Approved :: GNU General Public License (GPL)',
+            'Natural Language :: English',
+            'Operating System :: Microsoft :: Windows :: Windows 10',
+            'Operating System :: POSIX :: Linux',
+            'Operating System :: MacOS :: MacOS X',
+            'Programming Language :: Fortran',
+            'Programming Language :: Python :: 3 :: Only',
+            'Topic :: Scientific/Engineering :: Physics',
+          ],
+          keywords='',
+          license='GPL',
+          entry_points={'console_scripts': [
+                              'eps=msspec_dfm.cli:main',],
+                       },
+          )