%\cite{Isoyama:FEL2015-TUP010}
\bibitem{Isoyama:FEL2015-TUP010}
    G.~Isoyama, M.~Fujimoto, S.~Funakoshi, K.~Furukawa, A.~Irizawa, R.~Kato, \emph{et al.},
%   G. Isoyama \emph{et al.},
   \textquotedblleft{Recent Progress in Upgrade of the High-Intensity THz-FEL at Osaka University}\textquotedblright,
%  in \emph{Proc. FEL2015}, TUP010, pp. 354--358,
%  in \emph{Proc. FEL2015}, Daejeon, Republic of Korea, August 2015, paper TUP010, pp. 354--358,
   in \emph{Proc. 37th International Free Electron Laser Conference (FEL2015)}, Daejeon, Republic of Korea, August 2015, paper TUP010, pp. 354--358,
    ISBN: 978-3-95450-134-2,
    \url{http://accelconf.web.cern.ch/AccelConf/FEL2015/papers/tup010.pdf},
    doi:10.18429/JACoW-FEL2015-TUP010, 2015.