%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Challinor_etal2017} Challinor, A. J., M{\"u}ller, C., Asseng, S., Deva, C., Nicklin, K. J., Wallach, D., et al. (2017). Improving the use of crop models for risk assessment and climate change adaptation. \textit{Agric. Syst.}, \textit{159}, 296--306.

\end{thebibliography}

\end{document}

