%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{15}

\bibitem{877} Fadi Dornaika and Angel Sappa. 2007. Rigid and Non-rigid Face Motion Tracking by Aligning Texture Maps and Stereo 3D Models. \textit{PRL}, \textbf{28}(15), 2116--2126.

\end{thebibliography}

\end{document}

