%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Deutsch_etal2004} {\textquotedblleft}\textit{Elemental and ionic concentrations in the urban aerosol in Antwerp, Belgium}{\textquotedblright}. Deutsch F, Stranger M, Kaplinskii AE, Samek L, Joos P, Van Grieken R, Journal of environmental science and health: part A: toxic/hazardous substances \& environmental engineering \textbf{39}, 539 (2004).   http://doi.org/10.1081/ESE-120027724

\end{thebibliography}

\end{document}

