%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Aguiar_etal2014} {\textquotedblleft}\textit{Preface}{\textquotedblright}. Aguiar JA, Roa-Rojas J, Parra Vargas CA, Landinez Tellez DA, Corredor Bohorquez LT, Shanenko A, Jardim RF, Peeters F, Physica: B : condensed matter \textbf{455}, 1 (2014).   http://doi.org/10.1016/j.physb.2014.05.013

\end{thebibliography}

\end{document}

