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%\cite{Feng:FEL2017-FRA04}
\bibitem{Feng:FEL2017-FRA04}
C. Feng, A. Chao, and Z.T. Zhao,
\textquotedblleft{Three-Dimensional Manipulation of the Electron Beam Phase Space for Generating Intense Coherent Radiation in Storage Rings}\textquotedblright,
presented at FEL2017, Santa Fe, NM, USA, Aug. 2017, paper FRA04, unpublished.
% presented at the 38th Int. Free Electron Laser Conf. (FEL'17), Santa Fe, NM, USA, Aug. 2017, paper FRA04, unpublished.