%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Barbier_etal2009} {\textquotedblleft}\textit{Dirac electrons in a Kronig-Penney potential: dispersion relation and transmission periodic in the strength of the barriers}{\textquotedblright}. Barbier M, Vasilopoulos P, Peeters FM, Physical review : B : solid state \textbf{80}, 205415 (2009).   http://doi.org/10.1103/PhysRevB.80.205415

\end{thebibliography}

\end{document}

