The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Wang:IPAC2017-TUPAB009} \bibitem{Wang:IPAC2017-TUPAB009} D. Wang, Y.L. Chi, J. Gao, X.P. Li, C. Meng, G. Pei, and \emph{et al.}, % D. Wang, Y.L. Chi, J. Gao, X.P. Li, C. Meng, G. Pei, and J.R. Zhang, % D. Wang \emph{et al.}, \textquotedblleft{Design Study on CEPC Positron Damping Ring and Bunch Compressor}\textquotedblright, % in \emph{Proc. IPAC2017}, pp. 1318--1321, % in \emph{Proc. IPAC2017}, Copenhagen, Denmark, May 2017, paper TUPAB009, pp. 1318--1321, in \emph{Proc. 8th Int. Particle Accelerator Conf. (IPAC'17)}, Copenhagen, Denmark, May 2017, paper TUPAB009, pp. 1318--1321, % ISBN: 978-3-95450-182-3, \url{http://jacow.org/ipac2017/papers/tupab009.pdf}, \url{https://doi.org/10.18429/JACoW-IPAC2017-TUPAB009}, 2017.