da ich einen neuen Thread aufmachen sollte
tex datei
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paper=a4,
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\usepackage[utf8]{inputenc}
\usepackage[ngerman]{babel}
\usepackage{lmodern}
\usepackage[backend=biber, style=apa, bibstyle=authoryear, isbn=true, backref, maxnames=10, maxalphanames=10, maxbibnames=99]{biblatex}
\DeclareNameAlias{sortname}{family-given}
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\DeclareLanguageMapping{ngerman}{german-apa}
\begin{document}
\parencite{Praxishandbuch}
\printbibliography[title={Literaturverzeichnis}]
\end{document} @book{Praxishandbuch,
author = {{Dr. Werner} Gleißner AND Frank Romeike AND Martin Bemmann AND Thomas Berger AND {Dr. Volker} Bieta AND {Dr. Bruno} Br"uhwiler AND {Prof. Dr. Thomas} Egner AND {Dr. Roland Franz} Erben AND {Dr. Karsten} F"user AND {Dr. Stefan Peter} Giebel AND {Dr. Thilo Grundmann} AND {Dr. Peter} Hager AND {Prof. Dr. Klaus} Henselmann AND {Prof. Dr. Reinhold} H"olscher AND {Prof. Dr. Ulrich} Hommel AND {Dr. Steffi} H"ose AND {Prof. Dr. Stefan} Huschens AND Peter Jussel AND {Prof. Dr. Peter} Kaj"uter AND {J. M.} Kobi AND {Dr. Wilhelm K.} Kross AND {Prof. Dr. Magdalena} Mißler-Behr AND {Bernd P.} Mott AND {Dr. Thomas} M"unzenberg AND {Dr. Marcus} Pauli AND {Professor Dr. Dietmar} Pfeifer AND {Dr. Hendrik} Pontzen AND {Dr. Gunnar} Pritsch AND {Prof. Dr. Dr. Friedrich} Rosenkranz AND {Prof. Dr. Arnd} Wiedemann AND Marco Wolfrum AND {Prof. Dr. Stefan} Zeranski},
title = {Praxishandbuch Risikomanagement},
date = {2014-11-28},
subtitle = {Konzepte - Methoden - Umsetzung},
language = {deutsch},
publisher = {Erich Schmidt Verlag GmbH \& Co},
isbn = {978-3503157976},
}
gruß blub

