%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{5}

\bibitem{Lydersen_etal2010} Lydersen, L., Wiechers, C., Wittmann, C., Elser, D., Skaar, J., \& Makarov, V. (2010). Hacking commercial quantum cryptography systems by tailored bright illumination. \textit{Nat. Photon.}, \textit{4}(10), 686--689.

\end{thebibliography}

\end{document}

