%&LaTeX
\documentclass{article}

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

\begin{document}

\begin{thebibliography}{10}

\bibitem{Oldengott_etal2019} Oldengott, I. M., Barenboim, G., Kahlen, S., Salvado, J., \& Schwarz, D. J. (2019). How to relax the cosmological neutrino mass bound. \textit{J. Cosmol. Astropart. Phys.}, \textit{04}(4), 049--18pp.

\end{thebibliography}

\end{document}

