%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Zhang_etal2008} {\textquotedblleft}\textit{Retrieving the dielectric function of diamond from valence electron energy-loss spectroscopy}{\textquotedblright}. Zhang L, Erni R, Verbeeck J, Van Tendeloo G, Physical review : B : condensed matter and materials physics \textbf{77}, 195119 (2008).   http://doi.org/10.1103/PhysRevB.77.195119

\end{thebibliography}

\end{document}

