%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Leadley_etal1994} {\textquotedblleft}\textit{Collapse of high field magnetophonon resonance in GaAs-GaAlAs heterojunctions}{\textquotedblright}. Leadley DR, Nicholas RJ, Singleton J, Xu W, Peeters FM, Devreese JT, Perenboom JAAJ, van Bockstal L, Herlach F, Harris JJ, Foxon CT, Physical review letters \textbf{73}, 589 (1994).   http://doi.org/10.1103/PhysRevLett.73.589

\end{thebibliography}

\end{document}

