The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Park:IPAC2017-THPVA114}
\bibitem{Park:IPAC2017-THPVA114}
S.J. Park, H.S. Han, J.H. Hwang, W.H. Hwang, S.Y. Hyun, S.D. Jang, \emph{et al.},
% S.J. Park, H.S. Han, J.H. Hwang, W.H. Hwang, S.Y. Hyun, S.D. Jang, S.S. Jang, Y.D. Joo, K.R. Kim, C.D. Park, Y.J. Park, H.S. Seo, and D.H. Yu,
% S.J. Park \emph{et al.},
\textquotedblleft{Status of High-Efficiency Klystron Development for the PLS-II and PAL-XFEL}\textquotedblright,
% in \emph{Proc. IPAC2017}, pp. 4726--4729,
% in \emph{Proc. IPAC2017}, Copenhagen, Denmark, May 2017, paper THPVA114, pp. 4726--4729,
in \emph{Proc. 8th Int. Particle Accelerator Conf. (IPAC'17)},
Copenhagen, Denmark, May 2017, paper THPVA114, pp. 4726--4729,
% ISBN: 978-3-95450-182-3,
\url{http://jacow.org/ipac2017/papers/thpva114.pdf},
\url{https://doi.org/10.18429/JACoW-IPAC2017-THPVA114}, 2017.