%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{PierreAugerCollaborationAab+Pastor2014} Pierre Auger Collaboration(Aab, A. et al), \& Pastor, S. (2014). Muons in air showers at the Pierre Auger Observatory: Measurement of atmospheric production depth. \textit{Phys. Rev. D}, \textit{90}(1), 012012--15pp.

\end{thebibliography}

\end{document}

