%&LaTeX
\documentclass{article}

\usepackage[latin1]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{textcomp}

\begin{document}

\begin{thebibliography}{10}

\bibitem{Bauerecker1999} Bauerecker, G. (1999). \textit{Die S{\"u}{\ss}wassermulluskenfauna des Ledererbaches (Tennengau, Salzburg)}. Salzburg: Universit{\"a}t.

\end{thebibliography}

\end{document}

