The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Kuzikov:FEL2017-WEP055}
\bibitem{Kuzikov:FEL2017-WEP055}
S.V. Kuzikov, S.P. Antipov, A. Liu, A.V. Savilov, and A.A. Vikharev,
\textquotedblleft{Tapered Flying Radiofrequency Undulator}\textquotedblright,
in \emph{Proc. FEL2017}, \url{https://doi.org/10.18429/JACoW-FEL2017-WEP055}, 2018.
% in \emph{Proc. FEL2017}, \url{https://doi.org/10.18429/JACoW-FEL2017-WEP055}, pp. 525--528.
% in \emph{Proc. FEL2017}, Santa Fe, NM, USA, Aug. 2017, paper WEP055, \url{https://doi.org/10.18429/JACoW-FEL2017-WEP055}
% in \emph{Proc. 38th Int. Free Electron Laser Conf. (FEL'17)},
% Santa Fe, NM, USA, Aug. 2017, paper WEP055, pp. 525--528,
% ISBN: 978-3-95450-179-3,
% \url{http://jacow.org/fel2017/papers/wep055.pdf},
% \url{https://doi.org/10.18429/JACoW-FEL2017-WEP055}, 2018.