The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Tao:IPAC2017-TUPVA140} \bibitem{Tao:IPAC2017-TUPVA140} Y. Tao, K. Hwang, and J. Qiang, \textquotedblleft{Space charge effects of catch-up collision in a CW double-pass proton linac}\textquotedblright, % in \emph{Proc. IPAC2017}, pp. 2429--2431, % in \emph{Proc. IPAC2017}, Copenhagen, Denmark, May 2017, paper TUPVA140, pp. 2429--2431, in \emph{Proc. 8th Int. Particle Accelerator Conf. (IPAC'17)}, Copenhagen, Denmark, May 2017, paper TUPVA140, pp. 2429--2431, % ISBN: 978-3-95450-182-3, \url{http://jacow.org/ipac2017/papers/tupva140.pdf}, \url{https://doi.org/10.18429/JACoW-IPAC2017-TUPVA140}, 2017.