\documentclass[12pt,a4paper]{scrreprt} \usepackage[square, numbers]{natbib} \begin{document} Blabla \citet{petz08}. \bibliographystyle{plaindin} \bibliography{Literatur} \end{document} %@Book{petz08, %author = {Dude Petz}, %title = {Quantum Information Theory and Statistics}, %publisher = {Springer}, %year = 2008 %}
Blabla (author?)[1].
Das Literaturverzeichnis wird korrekt dargestellt. Was mache ich falsch?