%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{10}

\bibitem{Kuells_etal1995} K{\"u}lls, C., Leibundgut, C., Schwarz, U., \& Schick, A. P. (1995). Channel infiltration study using dye tracers. \textit{IAHS Publications-Series of Proceedings and Reports-Intern Assoc Hydrological Sciences}, \textit{232}, 429--436.

\end{thebibliography}

\end{document}

