%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Biro_etal2001} {\textquotedblleft}\textit{Catalyst traces after chemical purification in CVD grown carbon nanotubes}{\textquotedblright}. Bir{\'o} LP, Khanh NQ, Horv{\'a}th ZE, V{\'e}rtesy Z, Kocsonya A, Konya Z, Osv{\'a}th Z, Ko{\'o}s A, Guylai J, Zhang XB, Van Tendeloo G, Fonseca A, Nagy JB, , 183 (2001)

\end{thebibliography}

\end{document}

