The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Sha:IPAC2017-WEPIK021} \bibitem{Sha:IPAC2017-WEPIK021} B. Sha, J. Gao, Y. Wang, and C.H. Yu, \textquotedblleft{MDI Issues in CEPC Double Ring}\textquotedblright, % in \emph{Proc. IPAC2017}, pp. 2965--2967, % in \emph{Proc. IPAC2017}, Copenhagen, Denmark, May 2017, paper WEPIK021, pp. 2965--2967, in \emph{Proc. 8th Int. Particle Accelerator Conf. (IPAC'17)}, Copenhagen, Denmark, May 2017, paper WEPIK021, pp. 2965--2967, % ISBN: 978-3-95450-182-3, \url{http://jacow.org/ipac2017/papers/wepik021.pdf}, \url{https://doi.org/10.18429/JACoW-IPAC2017-WEPIK021}, 2017.