diff --git a/.gitignore b/.gitignore
index d567e1b..ed22c00 100644
--- a/.gitignore
+++ b/.gitignore
@@ -47,3 +47,4 @@ Thumbs.db
 *.pyg
 *.gz
 *.toc
+*.bst
diff --git a/tex/classicthesis-config.tex b/tex/classicthesis-config.tex
index 3ae081d..cccbf81 100644
--- a/tex/classicthesis-config.tex
+++ b/tex/classicthesis-config.tex
@@ -85,6 +85,9 @@
 
 \PassOptionsToPackage{fleqn}{amsmath}		% math environments and more by the AMS
  \usepackage{amsmath}
+\usepackage{amstext}
+\usepackage{amsfonts}
+\usepackage{amssymb}
 
 % ********************************************************************
 % General useful packages
diff --git a/tex/thesis.pdf b/tex/thesis.pdf
index d03dc29..b2b5578 100644
Binary files a/tex/thesis.pdf and b/tex/thesis.pdf differ