%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{5}

\bibitem{Perseguers_etal2010} Perseguers, S., Lewenstein, M., Ac{\'\i}n, A., \& Cirac, J. I. (2010). Quantum random networks. \textit{Nat. Phys.}, \textit{6}(7), 539--543.

\end{thebibliography}

\end{document}

