\end{slide}
\begin{slide}{computational techniques}
-techniques \textcolor{red}{not yet} discussed in the talk:\footnote{if time is available this will be completed. read more at http://www.nr.com}
+techniques \textcolor{red}{not yet} discussed in the talk:\footnote{if time is available this will be completed. updates at:\\http://www.physik.uni-augsburg.de/\~{}zirkelfr/download/cp/cp.pdf\\read more at: http://www.nr.com}
\begin{itemize}
%\item rough discretization
%\item solution of linear algebraic equations