%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Ernst+Stoever2012} Ernst, M. - L., \& St{\"o}ver, H. (2012). Gendersensible Sucht-/HIV/Aids-Hilfe = Gender-sensitive drug and HIV/AIDS work. \textit{Akzeptanzorientierte Drogenarbeit = Acceptance-oriented drug work}, \textit{9}(05.03.2012), 1--15.

\end{thebibliography}

\end{document}

