The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Sei:IPAC2017-MOPAB073} \bibitem{Sei:IPAC2017-MOPAB073} N. Sei, K. Hayakawa, Y. Hayakawa, K. Nogami, H. Ogawa, H. Ohgaki, \emph{et al.}, % N. Sei, K. Hayakawa, Y. Hayakawa, K. Nogami, H. Ogawa, H. Ohgaki, T. Sakai, T. Tanaka, and H. Zen, % N. Sei \emph{et al.}, \textquotedblleft{Measurement of Electron-Bunch Length Using Coherent Radiation in Infrared Free-Electron Laser Facilities}\textquotedblright, % in \emph{Proc. IPAC2017}, pp. 288--291, % in \emph{Proc. IPAC2017}, Copenhagen, Denmark, May 2017, paper MOPAB073, pp. 288--291, in \emph{Proc. 8th Int. Particle Accelerator Conf. (IPAC'17)}, Copenhagen, Denmark, May 2017, paper MOPAB073, pp. 288--291, % ISBN: 978-3-95450-182-3, \url{http://jacow.org/ipac2017/papers/mopab073.pdf}, \url{https://doi.org/10.18429/JACoW-IPAC2017-MOPAB073}, 2017.