The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{freund:fel2019-wed04}
\bibitem{freund:fel2019-wed04}
W. Freund, L. Fröhlich, J. Grünert, S. Karabekyan, A. Koch, J. Liu, \emph{et al.},
% W. Freund, L. Fröhlich, J. Grünert, S. Karabekyan, A. Koch, J. Liu, D. Nölle, and J. Wilgen,
% W. Freund \emph{et al.},
\textquotedblleft{Undulator Adjustment with the K-Monochromator System at the European XFEL}\textquotedblright,
% --- abbreviated form (UNpublished paper) - JACoW template Feb 2018 ---
presented at FEL'19, Hamburg, Germany, Aug. 2019, paper WED04, unpublished.