%\cite{Nishimori:FEL2015-MOD01} \bibitem{Nishimori:FEL2015-MOD01} N.~Nishimori, \textquotedblleft{Review of Experimental Results from High Brightness DC Guns: Highlights in FEL Applications}\textquotedblright, % in \emph{Proc. FEL2015}, MOD01, pp. 269--273, % in \emph{Proc. FEL2015}, Daejeon, Republic of Korea, August 2015, paper MOD01, pp. 269--273, in \emph{Proc. 37th International Free Electron Laser Conference (FEL2015)}, Daejeon, Republic of Korea, August 2015, paper MOD01, pp. 269--273, ISBN: 978-3-95450-134-2, \url{http://accelconf.web.cern.ch/AccelConf/FEL2015/papers/mod01.pdf}, doi:10.18429/JACoW-FEL2015-MOD01, 2015.