%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Osan_etal2002} {\textquotedblleft}\textit{Characterisation of wood combustion particles using electron probe microanalysis}{\textquotedblright}. Os{\'a}n J, Alf{\"o}ldy B, T{\"o}r{\"o}k S, Van Grieken R, Atmospheric environment : an international journal \textbf{36}, 2207 (2002).   http://doi.org/10.1016/S1352-2310(02)00153-X

\end{thebibliography}

\end{document}

