%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{63} X. Binefa, Xavier Roca, \& Jordi Vitria. (1997). \textit{A Contrast Approach to Depth from Focus.}.

\end{thebibliography}

\end{document}

