%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Yang_etal2011} {\textquotedblleft}\textit{Melting properties of two-dimensional multi-species colloidal systems in a parabolic trap}{\textquotedblright}. Yang W, Nelissen K, Kong MH, Li YT, Tian YM, European physical journal : B : condensed matter and complex systems \textbf{83}, 499 (2011).   http://doi.org/10.1140/epjb/e2011-20595-9

\end{thebibliography}

\end{document}

