%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Albrecht1981} Albrecht, H. (1981). \textit{Die Flu{\ss}krebse des westliche K{\"a}rnten} (Vol. 171).

\end{thebibliography}

\end{document}

