%\cite{Lee:FEL2015-TUP055}
\bibitem{Lee:FEL2015-TUP055}
    H.-G.~Lee, Y.-G.~Jung, H.-S.~Kang, D.E.~Kim, K.W.~Kim, S.B.~Lee, \emph{et al.},
%   H.-G. Lee \emph{et al.},
   \textquotedblleft{Technical Overview of Bunch Compressor System for PAL XFEL}\textquotedblright,
%  in \emph{Proc. FEL2015}, TUP055, pp. 490--492,
%  in \emph{Proc. FEL2015}, Daejeon, Republic of Korea, August 2015, paper TUP055, pp. 490--492,
   in \emph{Proc. 37th International Free Electron Laser Conference (FEL2015)}, Daejeon, Republic of Korea, August 2015, paper TUP055, pp. 490--492,
    ISBN: 978-3-95450-134-2,
    \url{http://accelconf.web.cern.ch/AccelConf/FEL2015/papers/tup055.pdf},
    doi:10.18429/JACoW-FEL2015-TUP055, 2015.