%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{various2011} various. (2011). Spectra Nr. 89 : Internationales. \textit{Spectra : Gesundheitsf{\"o}rderung und Pr{\"a}vention}, (89; 11/2011), 12.

\end{thebibliography}

\end{document}

