%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{1}

\bibitem{DeCocker_etal2018} {\textquotedblleft}\textit{Enrichment and adaptation yield high anammox conversion rates under low temperatures}{\textquotedblright}. De Cocker P, Bessiere Y, Hernandez-Raquet G, Dubos S, Mozo I, Gaval G, Caligaris M, Barillon B, Vlaeminck SE, Sperandio M, Bioresource technology \textbf{250}, 505 (2018).   http://doi.org/10.1016/J.BIORTECH.2017.11.079

\end{thebibliography}

\end{document}

