%&LaTeX
\documentclass{article}

\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{textcomp}

\begin{document}

\begin{thebibliography}{1}

\bibitem{Koch+Weissinger2009} Koch, A., \& Weissinger, V. (2009). Bericht zur Fachtagung -- Reha wirkt. \textit{SuchtMagazin}, \textit{35}(2; 04/2009), 9--11.

\end{thebibliography}

\end{document}

