%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Bruno-Alfonso_etal2001} {\textquotedblleft}\textit{High energy transitions of shallow magneto-donors in a GaAs/Al$_{0.3}$Ga$_{0.7}$As multiple quantum well}{\textquotedblright}. Bruno-Alfonso A, Hai G-Q, Peeters FM, Yeo T, Ryu SR, McCombe BD, Journal of physics : condensed matter \textbf{13}, 9761 (2001).   http://doi.org/10.1088/0953-8984/13/43/307

\end{thebibliography}

\end{document}

