%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Gijbels+vanGrieken1977} Gijbels R, van Grieken R (1977) Application of analytical methods for trace elements in geothermal waters : part 1 : Am{\'e}lie-les-Bains (Eastern Pyrenees). S.l

\end{thebibliography}

\end{document}

