%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Belik_etal2002} {\textquotedblleft}\textit{Positional and orientational disorder in a solid solution of Sr$_{9-x}$Ni$_{1.5-x}$(PO$_{4}$)$_{7}$ (x=0.3)}{\textquotedblright}. Belik A, Izumi F, Ikeda T, Morozov VA, Dilanian R, Torii S, Kopnin E, Lebedev OI, Van Tendeloo G, Lazoryak BI, Chemistry and materials \textbf{14}, 4464 (2002).   http://doi.org/10.1021/cm0206901

\end{thebibliography}

\end{document}

