%\cite{Lee:FEL2015-TUP043}
\bibitem{Lee:FEL2015-TUP043}
    S.J.~Lee, J.H.~Han, H.-S.~Kang, C.~Kim, S.H.~Kim, I.S.~Ko, \emph{et al.},
%   S.J. Lee \emph{et al.},
   \textquotedblleft{PAL-XFEL Cavity BPM Prototype Beam Test at ITF}\textquotedblright,
%  in \emph{Proc. FEL2015}, TUP043, pp. 468--470,
%  in \emph{Proc. FEL2015}, Daejeon, Republic of Korea, August 2015, paper TUP043, pp. 468--470,
   in \emph{Proc. 37th International Free Electron Laser Conference (FEL2015)}, Daejeon, Republic of Korea, August 2015, paper TUP043, pp. 468--470,
    ISBN: 978-3-95450-134-2,
    \url{http://accelconf.web.cern.ch/AccelConf/FEL2015/papers/tup043.pdf},
    doi:10.18429/JACoW-FEL2015-TUP043, 2015.