%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Li_etal2013} {\textquotedblleft}\textit{Effect of a perpendicular magnetic field on the shallow donor states near a semiconductor-metal interface}{\textquotedblright}. Li B, Djotyan AP, Hao YL, Avetisyan AA, Peeters FM, Physical review : B : condensed matter and materials physics \textbf{87}, 075313 (2013).   http://doi.org/10.1103/PhysRevB.87.075313

\end{thebibliography}

\end{document}

