%\cite{Kim:FEL2015-WED04}
\bibitem{Kim:FEL2015-WED04}
    D.E.~Kim, M.-H.~Cho, Y.-G.~Jung, H.-S.~Kang, S.~Karabekyan, I.S.~Ko, \emph{et al.},
%   D.E. Kim \emph{et al.},
   \textquotedblleft{Status Report of PAL-XFEL Undulator Program}\textquotedblright,
%  in \emph{Proc. FEL2015}, WED04, pp. 769--771,
%  in \emph{Proc. FEL2015}, Daejeon, Republic of Korea, August 2015, paper WED04, pp. 769--771,
   in \emph{Proc. 37th International Free Electron Laser Conference (FEL2015)}, Daejeon, Republic of Korea, August 2015, paper WED04, pp. 769--771,
    ISBN: 978-3-95450-134-2,
    \url{http://accelconf.web.cern.ch/AccelConf/FEL2015/papers/wed04.pdf},
    doi:10.18429/JACoW-FEL2015-WED04, 2015.