%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Koenraad_etal1995} {\textquotedblleft}\textit{Electron mobility in Si delta doped GaAs}{\textquotedblright}. Koenraad PM, van de Stadt AFW, Hai GQ, Shi JM, Vansant P, Peeters FM, Devreese JT, Perenboom JAAJ, Wolter JH, Physica: B : condensed matter \textbf{211}, 462 (1995).   http://doi.org/10.1016/0921-4526(94)01094-H

\end{thebibliography}

\end{document}

