The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Watanabe:eeFACT2016-WET3BH1} \bibitem{Watanabe:eeFACT2016-WET3BH1} K. Watanabe, \textquotedblleft{Improvement of Efficiency of Klystron to Apply the CPD Method}\textquotedblright, % in \emph{Proc. eeFACT2016}, pp. 192--194, % in \emph{Proc. eeFACT2016}, Daresbury, UK, Oct. 2016, paper WET3BH1, pp. 192--194, in \emph{Proc. 58th ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e^+e^- Colliders (eeFACT'16)}, Daresbury, UK, Oct. 2016, paper WET3BH1, pp. 192--194, % ISBN: 978-3-95450-187-8, \url{http://jacow.org/eefact2016/papers/wet3bh1.pdf}, \url{https://doi.org/10.18429/JACoW-eeFACT2016-WET3BH1}, 2017.