%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Zhang_etal2013} {\textquotedblleft}\textit{Heating mechanism in direct current superposed single-frequency and dual-frequency capacitively coupled plasmas}{\textquotedblright}. Zhang Q-Z, Liu Y-X, Jiang W, Bogaerts A, Wang Y-N, Plasma sources science and technology \textbf{22}, 025014 (2013).   http://doi.org/10.1088/0963-0252/22/2/025014

\end{thebibliography}

\end{document}

