%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Billangeon+Nakamura2011} Billangeon P-M, Nakamura Y. Superconducting devices: Quantum cups and balls. Nat Phys. 2011;7(8):594--5.

\end{thebibliography}

\end{document}

