%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Markowicz_etal1985} {\textquotedblleft}\textit{Bremsstrahlung background in electron-probe X-ray-microanalysis of thin films}{\textquotedblright}. Markowicz AA, Storms HM, Van Grieken RE, Analytical chemistry \textbf{57}, 2885 (1985).   http://doi.org/10.1021/AC00291A032

\end{thebibliography}

\end{document}

