%% 
%%  Ein Beispiel der DANTE-Edition
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%%  Beispiel 02-07-11 auf Seite 34.
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%%  Copyright (C) 2011 Herbert Voss
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%%  It may be distributed and/or modified under the conditions
%%  of the LaTeX Project Public License, either version 1.3
%%  of this license or (at your option) any later version.
%% 
%%  See http://www.latex-project.org/lppl.txt for details.
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%% ==bibtex== 
% Show page(s) 1
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\documentclass[]{article}
\pagestyle{empty}
\setlength\textwidth{166.324pt}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[ngerman]{babel}
\setlength\parindent{0pt}
\usepackage{url}
\AtEndDocument{\clearpage\bibliographystyle{deChicago}
\bibliography{buch2}}

\usepackage{natbib}
\citestyle{nature}

\begin{document}
Quellen: \citet{voss:referenz} \citep{voss:pstricks}
\end{document}