The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Wu:FEL2017-TUP058}
\bibitem{Wu:FEL2017-TUP058}
J. Wu, A. Brachmann, K. Fang, H.-S. Kang, G. Kim, A. Marinelli, \emph{et al.},
% J. Wu, A. Brachmann, K. Fang, H.-S. Kang, G. Kim, A. Marinelli, I.H. Nam, C. Pellegrini, T.O. Raubenheimer, C.-Y. Tsai, B. Yang, C. Yang, M. Yoon, and G. Zhou,
% J. Wu \emph{et al.},
\textquotedblleft{Slippage-Enhanced SASE FEL}\textquotedblright,
in \emph{Proc. FEL2017}, \url{https://doi.org/10.18429/JACoW-FEL2017-TUP058}, 2018.
% in \emph{Proc. FEL2017}, \url{https://doi.org/10.18429/JACoW-FEL2017-TUP058}, pp. 348--351.
% in \emph{Proc. FEL2017}, Santa Fe, NM, USA, Aug. 2017, paper TUP058, \url{https://doi.org/10.18429/JACoW-FEL2017-TUP058}
% in \emph{Proc. 38th Int. Free Electron Laser Conf. (FEL'17)},
% Santa Fe, NM, USA, Aug. 2017, paper TUP058, pp. 348--351,
% ISBN: 978-3-95450-179-3,
% \url{http://jacow.org/fel2017/papers/tup058.pdf},
% \url{https://doi.org/10.18429/JACoW-FEL2017-TUP058}, 2018.