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%\cite{williams:erl2019-mocoybs02}
\bibitem{williams:erl2019-mocoybs02}
P.H. Williams,
\textquotedblleft{A Hard X-Ray FEL and Nuclear Physics Facility Based on a Multi-Pass Recirculating Superconducting CW Linac with Energy Recovery}\textquotedblright,
% --- abbreviated form (UNpublished paper) - JACoW template Feb 2018 ---
presented at ERL'19, Berlin, Germany, Sep. 2019, paper MOCOYBS02, unpublished.