%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Smondyrev_etal1994} {\textquotedblleft}\textit{Nonlinear Schr{\"o}dinger equation on a ring}{\textquotedblright}. Smondyrev MA, Vansant P, Peeters FM, Devreese JT, JINR communications  (1994)

\end{thebibliography}

\end{document}

