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%\cite{tanaka:fel2019-mob01}
\bibitem{tanaka:fel2019-mob01}
H. Tanaka,
\textquotedblleft{Operation Status and Future Perspective of Warm XFEL}\textquotedblright,
% --- abbreviated form (UNpublished paper) - JACoW template Feb 2018 ---
presented at FEL'19, Hamburg, Germany, Aug. 2019, paper MOB01, unpublished.