The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Liu:FEL2017-MOD05} \bibitem{Liu:FEL2017-MOD05} B. Liu, G.P. Fang, M. Gu, Q. Gu, Y.B. Leng, D. Wang, \emph{et al.}, % B. Liu, G.P. Fang, M. Gu, Q. Gu, Y.B. Leng, D. Wang, L. Yin, and Z.T. Zhentang, % B. Liu \emph{et al.}, \textquotedblleft{Status of the SXFEL Facility}\textquotedblright, presented at FEL2017, Santa Fe, NM, USA, Aug. 2017, paper MOD05, unpublished. % presented at the 38th Int. Free Electron Laser Conf. (FEL'17), Santa Fe, NM, USA, Aug. 2017, paper MOD05, unpublished.