%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Lais1931} Lais, R. (1931). \textit{Beitr{\"a}ge zur Kenntnis der badischen Molluskenfauna III} (Vol. 7).

\end{thebibliography}

\end{document}

