%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Ivanov_etal1994} {\textquotedblleft}\textit{The study of carbon nanotubes produced by catalytic method}{\textquotedblright}. Ivanov V, Nagy JB, Lambin P, Lucas A, Zhang XB, Zhang XF, Bernaerts D, Van Tendeloo G, Amelinckx S, van Landuyt J, Chemical physics letters \textbf{223}, 329 (1994)

\end{thebibliography}

\end{document}

