%\cite{Qin:FEL2015-MOP076}
\bibitem{Qin:FEL2015-MOP076}
    W.~Qin, J.E.~Chen, Y.~Ding, S.~Huang, Z.~Huang, K.X.~Liu, \emph{et al.},
%   W. Qin \emph{et al.},
   \textquotedblleft{Free-Electron Laser Driven by a 500 MeV Laser Plasma Accelerator Beam}\textquotedblright,
%  in \emph{Proc. FEL2015}, MOP076, pp. 217--220,
%  in \emph{Proc. FEL2015}, Daejeon, Republic of Korea, August 2015, paper MOP076, pp. 217--220,
   in \emph{Proc. 37th International Free Electron Laser Conference (FEL2015)}, Daejeon, Republic of Korea, August 2015, paper MOP076, pp. 217--220,
    ISBN: 978-3-95450-134-2,
    \url{http://accelconf.web.cern.ch/AccelConf/FEL2015/papers/mop076.pdf},
    doi:10.18429/JACoW-FEL2015-MOP076, 2015.