The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Zeng:FEL2017-MOP013}
\bibitem{Zeng:FEL2017-MOP013}
L. Zeng, Y. Ding, S. Huang, Z. Huang, K.X. Liu, W. Qin, and \emph{et al.},
% L. Zeng, Y. Ding, S. Huang, Z. Huang, K.X. Liu, W. Qin, and G. Zhao,
% L. Zeng \emph{et al.},
\textquotedblleft{Hundred-Gigawatt X-Ray Self-Seeded High-Gain Harmonic Generation}\textquotedblright,
in \emph{Proc. FEL2017}, \url{https://doi.org/10.18429/JACoW-FEL2017-MOP013}, 2018.
% in \emph{Proc. FEL2017}, \url{https://doi.org/10.18429/JACoW-FEL2017-MOP013}, pp. 53--56.
% in \emph{Proc. FEL2017}, Santa Fe, NM, USA, Aug. 2017, paper MOP013, \url{https://doi.org/10.18429/JACoW-FEL2017-MOP013}
% in \emph{Proc. 38th Int. Free Electron Laser Conf. (FEL'17)},
% Santa Fe, NM, USA, Aug. 2017, paper MOP013, pp. 53--56,
% ISBN: 978-3-95450-179-3,
% \url{http://jacow.org/fel2017/papers/mop013.pdf},
% \url{https://doi.org/10.18429/JACoW-FEL2017-MOP013}, 2018.