%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Roberts+Schlotfeldt1985} Roberts, R. J., \& Schlotfeldt, H. - J. (1985). \textit{Grundlagen der Fischpathologie}. Berlin, Hamburg: Paul Parey.

\end{thebibliography}

\end{document}

