%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{649} Matthias S. Keil, Gabriel Cristobal, \& Heiko Neumann. (2006). Gradient representation and perception in the early visual system -- A novel account of Mach band formation. \textit{VR - Vision Research, 46(17): 2659{\textendash}2674}.

\end{thebibliography}

\end{document}

