diff -r 91fb17bb6229 -r 569222a42cf5 document/root.tex
--- a/document/root.tex	Thu Jun 13 22:53:49 2013 +0800
+++ b/document/root.tex	Sun Jun 16 20:42:07 2013 -0400
@@ -56,21 +56,21 @@
 %%\mprset{center=false}
 \mprset{flushleft}
 \begin{document}
-\pagestyle{empty}
+%\pagestyle{empty}
 
-\noindent
-The co-authors Xingyuan Zhang and Christian Urban attest that the student 
-Chunhan Wu did all the central
-work concerning the paper.\bigskip\bigskip
+%\noindent
+%The co-authors Xingyuan Zhang and Christian Urban attest that the student 
+%Chunhan Wu did all the central
+%work concerning the paper.\bigskip\bigskip
 
-\includegraphics[scale=0.9]{xingyuan.jpg}\\
-\noindent
-Xingyuan Zhang
-\bigskip\bigskip
+%\includegraphics[scale=0.9]{xingyuan.jpg}\\
+%\noindent
+%Xingyuan Zhang
+%\bigskip\bigskip
 
-\mbox{}\hspace{-8mm}\includegraphics[scale=1.2]{christian.jpg}\\
-\noindent
-Christian Urban
+%\mbox{}\hspace{-8mm}\includegraphics[scale=1.2]{christian.jpg}\\
+%\noindent
+%Christian Urban
 
 
 \newpage