%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{28} X. Binefa, Petia Radeva, J.A. Cortijo, \& J. Garcia. (1998). \textit{Contour detection and color influence in defocused environtments.}.

\end{thebibliography}

\end{document}

