%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Jenk_etal2005} Jenk, U., Zimmermann, U., \& Ziegenbalg, G. (2005).  (J. Merkel Broder, \& A. Hasche-Berger, Eds.). Uranium in the Environment. Heidelberg: Springer.

\end{thebibliography}

\end{document}

