The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Ha:IPAC2017-MOPIK017} \bibitem{Ha:IPAC2017-MOPIK017} G. Ha, M.E. Conde, D.S. Doran, W. Gai, and J.G. Power, \textquotedblleft{Simultaneous Generation of Drive and Witness Beam for Collinear Wakefield Acceleration}\textquotedblright, % in \emph{Proc. IPAC2017}, pp. 535--537, % in \emph{Proc. IPAC2017}, Copenhagen, Denmark, May 2017, paper MOPIK017, pp. 535--537, in \emph{Proc. 8th Int. Particle Accelerator Conf. (IPAC'17)}, Copenhagen, Denmark, May 2017, paper MOPIK017, pp. 535--537, % ISBN: 978-3-95450-182-3, \url{http://jacow.org/ipac2017/papers/mopik017.pdf}, \url{https://doi.org/10.18429/JACoW-IPAC2017-MOPIK017}, 2017.