%\cite{Sydlo:FEL2015-WEP047}
\bibitem{Sydlo:FEL2015-WEP047}
    C.~Sydlo, M.K.~Czwalinna, M.~Felber, C.~Gerth, S.~Jabłoński, J.M.~Müller, \emph{et al.},
%   C. Sydlo \emph{et al.},
   \textquotedblleft{Femtosecond Timing Distribution at the European XFEL}\textquotedblright,
%  in \emph{Proc. FEL2015}, WEP047, pp. 669--671,
%  in \emph{Proc. FEL2015}, Daejeon, Republic of Korea, August 2015, paper WEP047, pp. 669--671,
   in \emph{Proc. 37th International Free Electron Laser Conference (FEL2015)}, Daejeon, Republic of Korea, August 2015, paper WEP047, pp. 669--671,
    ISBN: 978-3-95450-134-2,
    \url{http://accelconf.web.cern.ch/AccelConf/FEL2015/papers/wep047.pdf},
    doi:10.18429/JACoW-FEL2015-WEP047, 2015.
