%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Helo_etal2018} Helo, J. C., Hirsch, M., \& Ota, T. (2018). Proton decay and light sterile neutrinos. \textit{J. High Energy Phys.}, \textit{06}(6), 047--15pp.

\end{thebibliography}

\end{document}

