The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Craievich:FEL2017-WEP040} \bibitem{Craievich:FEL2017-WEP040} P. Craievich, R.W. Aßmann, M. Bopp, H.-H. Braun, N. Catalán Lasheras, F. Christie, \emph{et al.}, % P. Craievich, R.W. Aßmann, M. Bopp, H.-H. Braun, N. Catalán Lasheras, F. Christie, R.T.P. D'Arcy, R. Ganter, A. Grudiev, B. Marchetti, D. Marx, G. McMonagle, M. Pedrozzi, E. Prat, S. Reiche, W. Wuensch, and R. Zennaro, % P. Craievich \emph{et al.}, \textquotedblleft{Sub-Femtosecond Time-Resolved Measurements Based on a Variable Polarization X-Band Transverse Deflecting Structures for SwissFEL}\textquotedblright, in \emph{Proc. FEL2017}, \url{https://doi.org/10.18429/JACoW-FEL2017-WEP040}, 2018. % in \emph{Proc. FEL2017}, \url{https://doi.org/10.18429/JACoW-FEL2017-WEP040}, pp. 499--502. % in \emph{Proc. FEL2017}, Santa Fe, NM, USA, Aug. 2017, paper WEP040, \url{https://doi.org/10.18429/JACoW-FEL2017-WEP040} % in \emph{Proc. 38th Int. Free Electron Laser Conf. (FEL'17)}, % Santa Fe, NM, USA, Aug. 2017, paper WEP040, pp. 499--502, % ISBN: 978-3-95450-179-3, % \url{http://jacow.org/fel2017/papers/wep040.pdf}, % \url{https://doi.org/10.18429/JACoW-FEL2017-WEP040}, 2018.