diff --git a/msspecbook/_config.yml b/msspecbook/_config.yml
index fc8f1a6..bc61402 100644
--- a/msspecbook/_config.yml
+++ b/msspecbook/_config.yml
@@ -16,8 +16,8 @@ latex:
     targetname: book.tex
 
 # Add a bibtex file so that we can create citations
-bibtex_bibfiles:
-  - references.bib
+#bibtex_bibfiles:
+#  - references.bib
 
 # Information about where the book exists on the web
 repository:
diff --git a/msspecbook/logo.png b/msspecbook/logo.png
deleted file mode 100644
index eb72a9b..0000000
Binary files a/msspecbook/logo.png and /dev/null differ