The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Xiang:IPAC2017-MOPIK003} \bibitem{Xiang:IPAC2017-MOPIK003} R. Xiang, A. Arnold, P.N. Lu, P. Michel, P. Murcek, P. Patra, \emph{et al.}, % R. Xiang, A. Arnold, P.N. Lu, P. Michel, P. Murcek, P. Patra, J. Teichert, and H. Vennekate, % R. Xiang \emph{et al.}, \textquotedblleft{Improvement of the Photoemission Efficiency of Magnesium Photocathodes}\textquotedblright, % in \emph{Proc. IPAC2017}, pp. 500--502, % in \emph{Proc. IPAC2017}, Copenhagen, Denmark, May 2017, paper MOPIK003, pp. 500--502, in \emph{Proc. 8th Int. Particle Accelerator Conf. (IPAC'17)}, Copenhagen, Denmark, May 2017, paper MOPIK003, pp. 500--502, % ISBN: 978-3-95450-182-3, \url{http://jacow.org/ipac2017/papers/mopik003.pdf}, \url{https://doi.org/10.18429/JACoW-IPAC2017-MOPIK003}, 2017.