The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Kostin:SRF2017-MOPB111}
\bibitem{Kostin:SRF2017-MOPB111}
D. Kostin, J. Branlard, A. Gössel, O. Hensler, M. Omet, D. Reschke, \emph{et al.},
% D. Kostin, J. Branlard, A. Gössel, O. Hensler, M. Omet, D. Reschke, A.A. Sulimov, N. Walker, and M. Wiencek,
% D. Kostin \emph{et al.},
\textquotedblleft{European XFEL Linac RF System Conditioning and Operating Test}\textquotedblright,
in \emph{Proc. SRF2017}, \url{https://doi.org/10.18429/JACoW-SRF2017-MOPB111}, 2018.
% in \emph{Proc. SRF2017}, \url{https://doi.org/10.18429/JACoW-SRF2017-MOPB111}, pp. 328--331.
% in \emph{Proc. SRF2017}, Lanzhou, China, July 2017, paper MOPB111, \url{https://doi.org/10.18429/JACoW-SRF2017-MOPB111}
% in \emph{Proc. 18th Int. Conf. on RF Superconductivity (SRF'17)},
% Lanzhou, China, July 2017, paper MOPB111, pp. 328--331,
% ISBN: 978-3-95450-191-5,
% \url{http://jacow.org/srf2017/papers/mopb111.pdf},
% \url{https://doi.org/10.18429/JACoW-SRF2017-MOPB111}, 2018.