The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Wu:SAP2017-WEBH4}
\bibitem{Wu:SAP2017-WEBH4}
D. Wu, C.L. Lao, M. Li, P. Li, X. Li, S.F. Lin, \emph{et al.},
% D. Wu, C.L. Lao, M. Li, P. Li, X. Li, S.F. Lin, X. Luo, Q. Pan, L.J. Shan, H. Wang, J. Wang, D.X. Xiao, X. Yang, and K. Zhou,
% D. Wu \emph{et al.},
\textquotedblleft{Beam Optimization and Measurment of CAEP FEL-THz Injector}\textquotedblright,
in \emph{Proc. SAP2017}, \url{https://doi.org/10.18429/JACoW-SAP2017-WEBH4}, 2018.
% in \emph{Proc. SAP2017}, \url{https://doi.org/10.18429/JACoW-SAP2017-WEBH4}, pp. 179--182.
% in \emph{Proc. SAP2017}, Jishou, China, Aug. 2017, paper WEBH4, \url{https://doi.org/10.18429/JACoW-SAP2017-WEBH4}
% in \emph{Proc. 13th Symposium on Accelerator Physics (SAP'17)},
% Jishou, China, Aug. 2017, paper WEBH4, pp. 179--182,
% ISBN: 978-3-95450-199-1,
% \url{http://jacow.org/sap2017/papers/webh4.pdf},
% \url{https://doi.org/10.18429/JACoW-SAP2017-WEBH4}, 2018.