The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Lechner:FEL2017-MOP003}
\bibitem{Lechner:FEL2017-MOP003}
C. Lechner, A. Azima, R.W. Aßmann, J. Bödewadt, M. Dohlus, M. Drescher, \emph{et al.},
% C. Lechner, A. Azima, R.W. Aßmann, J. Bödewadt, M. Dohlus, M. Drescher, N. Ekanayake, G. Feng, I. Hartl, S. Khan, T. Laarmann, T. Lang, Th. Maltezopoulos, T. Plath, J. Roßbach, L. Winkelmann, W. Wurth, and I. Zagorodnov,
% C. Lechner \emph{et al.},
\textquotedblleft{Concept for a Seeded FEL at FLASH2}\textquotedblright,
in \emph{Proc. FEL2017}, \url{https://doi.org/10.18429/JACoW-FEL2017-MOP003}, 2018.
% in \emph{Proc. FEL2017}, \url{https://doi.org/10.18429/JACoW-FEL2017-MOP003}, pp. 34--37.
% in \emph{Proc. FEL2017}, Santa Fe, NM, USA, Aug. 2017, paper MOP003, \url{https://doi.org/10.18429/JACoW-FEL2017-MOP003}
% in \emph{Proc. 38th Int. Free Electron Laser Conf. (FEL'17)},
% Santa Fe, NM, USA, Aug. 2017, paper MOP003, pp. 34--37,
% ISBN: 978-3-95450-179-3,
% \url{http://jacow.org/fel2017/papers/mop003.pdf},
% \url{https://doi.org/10.18429/JACoW-FEL2017-MOP003}, 2018.