%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{2709} Joan M. Nu{\~n}ez. (2015). \textit{Vascular Pattern Characterization in Colonoscopy Images}  (Fernando Vilari{\~n}o, Ed.). Ph.D. thesis, Ediciones Graficas Rey, .

\end{thebibliography}

\end{document}

