%\cite{Li:FEL2015-TUP028}
\bibitem{Li:FEL2015-TUP028}
    H.T.~Li, Q.K.~Jia, L.~Wang, and S.C.~Zhang,
   \textquotedblleft{DESIGN OF THE MID-INFRARED FEL OSCILLATOR IN CHINA}\textquotedblright,
%  in \emph{Proc. FEL2015}, TUP028, pp. 427--429,
%  in \emph{Proc. FEL2015}, Daejeon, Republic of Korea, August 2015, paper TUP028, pp. 427--429,
   in \emph{Proc. 37th International Free Electron Laser Conference (FEL2015)}, Daejeon, Republic of Korea, August 2015, paper TUP028, pp. 427--429,
    ISBN: 978-3-95450-134-2,
    \url{http://accelconf.web.cern.ch/AccelConf/FEL2015/papers/tup028.pdf},
    doi:10.18429/JACoW-FEL2015-TUP028, 2015.