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%%  Ein Beispiel der DANTE-Edition
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%%  Beispiel 02-07-21 auf Seite 40.
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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.
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%%  See http://www.latex-project.org/lppl.txt for details.
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%% ==bibtex== 
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\documentclass[]{article}
\pagestyle{empty}
\setlength\textwidth{352.81416pt}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[ngerman]{babel}
\setlength\parindent{0pt}

\usepackage{natbib}  \citestyle{agu}

\begin{document}
Quellen: \citet{Notes}\citep{harvard,graetzer07}
\bibliographystyle{agu} \bibliography{buch2}
\end{document}
