The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Schumacher:SRF2017-THPB075} \bibitem{Schumacher:SRF2017-THPB075} M. Schumacher, X. Jiang, and M. Vogel, \textquotedblleft{GaN-based Photocathodes for High Brightness Electron Beams}\textquotedblright, in \emph{Proc. SRF2017}, \url{https://doi.org/10.18429/JACoW-SRF2017-THPB075}, 2018. % in \emph{Proc. SRF2017}, \url{https://doi.org/10.18429/JACoW-SRF2017-THPB075}, pp. 906--909. % in \emph{Proc. SRF2017}, Lanzhou, China, July 2017, paper THPB075, \url{https://doi.org/10.18429/JACoW-SRF2017-THPB075} % in \emph{Proc. 18th Int. Conf. on RF Superconductivity (SRF'17)}, % Lanzhou, China, July 2017, paper THPB075, pp. 906--909, % ISBN: 978-3-95450-191-5, % \url{http://jacow.org/srf2017/papers/thpb075.pdf}, % \url{https://doi.org/10.18429/JACoW-SRF2017-THPB075}, 2018.