The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Pinayev:FEL2017-WEP051}
\bibitem{Pinayev:FEL2017-WEP051}
I. Pinayev, I.V. Ilyin, Y.C. Jing, R. Kellermann, Y. Kolokolnikov, V. Litvinenko, \emph{et al.},
% I. Pinayev, I.V. Ilyin, Y.C. Jing, R. Kellermann, Y. Kolokolnikov, V. Litvinenko, J. Skaritka, P. Vobly, and G. Wang,
% I. Pinayev \emph{et al.},
\textquotedblleft{Helical Undulators for Coherent Electron Cooling System}\textquotedblright,
in \emph{Proc. FEL2017}, \url{https://doi.org/10.18429/JACoW-FEL2017-WEP051}, 2018.
% in \emph{Proc. FEL2017}, \url{https://doi.org/10.18429/JACoW-FEL2017-WEP051}, pp. 519--521.
% in \emph{Proc. FEL2017}, Santa Fe, NM, USA, Aug. 2017, paper WEP051, \url{https://doi.org/10.18429/JACoW-FEL2017-WEP051}
% in \emph{Proc. 38th Int. Free Electron Laser Conf. (FEL'17)},
% Santa Fe, NM, USA, Aug. 2017, paper WEP051, pp. 519--521,
% ISBN: 978-3-95450-179-3,
% \url{http://jacow.org/fel2017/papers/wep051.pdf},
% \url{https://doi.org/10.18429/JACoW-FEL2017-WEP051}, 2018.