%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Caplehorn+Rubin2004} Caplehorn, J. R. M., \& Rubin, G. (2004). Injecting drug users{\textquoteright} attitudes to needle-sharing, hepatitis C, HIV/AIDS and harm minimisation. \textit{Akzeptanzorientierte Drogenarbeit = Acceptance-oriented drug work}, \textit{1}(29.12.2004), 29--34.

\end{thebibliography}

\end{document}

