%\cite{Saisa-ard:FEL2015-TUP040}
\bibitem{Saisa-ard:FEL2015-TUP040}
    C.~Saisa-ardS.~Rimjaem,
   \textquotedblleft{Simulation and Design of Low Emittance RF Electron Gun}\textquotedblright,
%  in \emph{Proc. FEL2015}, TUP040, pp. 455--458,
%  in \emph{Proc. FEL2015}, Daejeon, Republic of Korea, August 2015, paper TUP040, pp. 455--458,
   in \emph{Proc. 37th International Free Electron Laser Conference (FEL2015)}, Daejeon, Republic of Korea, August 2015, paper TUP040, pp. 455--458,
    ISBN: 978-3-95450-134-2,
    \url{http://accelconf.web.cern.ch/AccelConf/FEL2015/papers/tup040.pdf},
    doi:10.18429/JACoW-FEL2015-TUP040, 2015.