\documentclass{hausarbeit}
\begin{document}
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\author{Max Mustermann}
\title{Musterthema}
\subtitle{Lernfeld 3.1\\Frau Musterdozent}
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\maketitle
\newpage
\tableofcontents
\newpage
\section{Dummy}
\subsection{Didadummy}
\lipsum
\newpage
\bibliography{quellen}
\end{document}