The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Geng:IPAC2017-WEPIK023}
\bibitem{Geng:IPAC2017-WEPIK023}
H. Geng, J. Gao, B. Sha, D. Wang, Y. Wang, C.H. Yu, and \emph{et al.},
% H. Geng, J. Gao, B. Sha, D. Wang, Y. Wang, C.H. Yu, and Y. Zhang,
% H. Geng \emph{et al.},
\textquotedblleft{Sawtooth Effect in CEPC}\textquotedblright,
% in \emph{Proc. IPAC2017}, pp. 2971--2973,
% in \emph{Proc. IPAC2017}, Copenhagen, Denmark, May 2017, paper WEPIK023, pp. 2971--2973,
in \emph{Proc. 8th Int. Particle Accelerator Conf. (IPAC'17)},
Copenhagen, Denmark, May 2017, paper WEPIK023, pp. 2971--2973,
% ISBN: 978-3-95450-182-3,
\url{http://jacow.org/ipac2017/papers/wepik023.pdf},
\url{https://doi.org/10.18429/JACoW-IPAC2017-WEPIK023}, 2017.