deletions | additions       diff --git a/preamble.tex b/preamble.tex  index 566b48d..fb06be9 100644  --- a/preamble.tex  +++ b/preamble.tex 
...
\usepackage{url}  \bibliographystyle{plain}  \newcommand{\catme}{\href{http://www.catme.org}{CATME}}