%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Lebedev_etal2006} {\textquotedblleft}\textit{Mixed (Sr$_{1-x}$Ca$_{x}$)$_{33}$Bi$_{24}$Al$_{48}$O$_{141}$ fullerenoids: the defect structure analysed by (S)TEM techniques}{\textquotedblright}. Lebedev OI, Bals S, Van Tendeloo G, Snoeck GE, Retoux R, Boudin S, Hervieu M, International journal of materials research \textbf{97}, 978 (2006).   http://doi.org/10.3139/146.101328

\end{thebibliography}

\end{document}

