%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{Niermann_etal2014} {\textquotedblleft}\textit{Creating arrays of electron vortices}{\textquotedblright}. Niermann T, Verbeeck J, Lehmann M, Ultramicroscopy \textbf{136}, 165 (2014).   http://doi.org/10.1016/j.ultramic.2013.10.002

\end{thebibliography}

\end{document}

