\addcontentsline{toc}{chapter}{References}
\begin{thebibliography}{99}
  \bibitem{laplace}
    P. S. de Laplace.
    Th\'eorie analytique des probabilit\'es.
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    Paris, 1820, Gauthier-Villars.
  \bibitem{alder1}
    B. J. Alder, T.E. Wainwright.
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  \bibitem{alder2}
    B. J. Alder, T.E. Wainwright.
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  \bibitem{example}
    \selectlanguage{german}
    F. Zirkelbach, M. H"aberlen, J. K. N. Lindner, B. Stritzker.
    \selectlanguage{english}
    {\em Modelling of a selforganization process leading to periodic arrays of nanometric amorphous precipitates by ion irradiation.}
    Comp. Mater. Sci. 33 (2005) 310.
\end{thebibliography}
