%\cite{Schreiber:FEL2015-TUP041}
\bibitem{Schreiber:FEL2015-TUP041}
    S.~Schreiber, C.~Grün, K.~Klose, J.~Rönsch-Schulenburg, and B.~Steffen,
   \textquotedblleft{Simultaneous Operation of Three Laser Systems at the FLASH Photoinjector}\textquotedblright,
%  in \emph{Proc. FEL2015}, TUP041, pp. 459--463,
%  in \emph{Proc. FEL2015}, Daejeon, Republic of Korea, August 2015, paper TUP041, pp. 459--463,
   in \emph{Proc. 37th International Free Electron Laser Conference (FEL2015)}, Daejeon, Republic of Korea, August 2015, paper TUP041, pp. 459--463,
    ISBN: 978-3-95450-134-2,
    \url{http://accelconf.web.cern.ch/AccelConf/FEL2015/papers/tup041.pdf},
    doi:10.18429/JACoW-FEL2015-TUP041, 2015.