The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Sakai:IPAC2017-TUPAB049}
\bibitem{Sakai:IPAC2017-TUPAB049}
T. Sakai, K. Hayakawa, Y. Hayakawa, K. Nogami, H. Ogawa, N. Sei, and \emph{et al.},
% T. Sakai, K. Hayakawa, Y. Hayakawa, K. Nogami, H. Ogawa, N. Sei, and T. Tanaka,
% T. Sakai \emph{et al.},
\textquotedblleft{Development of the High Power Terahertz Light Sources at LEBRA Linac in Nihon University}\textquotedblright,
% in \emph{Proc. IPAC2017}, pp. 1437--1439,
% in \emph{Proc. IPAC2017}, Copenhagen, Denmark, May 2017, paper TUPAB049, pp. 1437--1439,
in \emph{Proc. 8th Int. Particle Accelerator Conf. (IPAC'17)},
Copenhagen, Denmark, May 2017, paper TUPAB049, pp. 1437--1439,
% ISBN: 978-3-95450-182-3,
\url{http://jacow.org/ipac2017/papers/tupab049.pdf},
\url{https://doi.org/10.18429/JACoW-IPAC2017-TUPAB049}, 2017.