\begin{thebibliography}{XX}
\bibitem{Comment}
According to FUB-CS standards a chapter containing bibliographic
references should always be included in your dissertation.
It is specified by:
\begin{verbatim}
  \begin{thebibliography}{XX}
    <your list of \bibitems>
  \end{thebibliography}
\end{verbatim}
\bibitem{Comment}
If you do not want numbers, then you can you can use, for instance, the very nice and powerful \texttt{natbib} package, or manually specify something like
\begin{verbatim}
\bibitem[L94]{Lamport}
\end{verbatim}
in your bibliography list to get \verb|[L94]| both in the text and between the square brackets in the bibliography. 
\bibitem{Lamport}
L. Lamport. {\em \LaTeX{} User's Guide \& Reference
Manual\/}, Addison-Wesley Publishing Company, Reading, Mass. 1986, 1994.
\end{thebibliography}


