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%\cite{Shen:SAP2017-TUPH15}
\bibitem{Shen:SAP2017-TUPH15}
G.D. Shen,
\textquotedblleft{Investigation of Ion-ion Merging based on a Figure 8 Ring}\textquotedblright,
presented at SAP2017, Jishou, China, Aug. 2017, paper TUPH15, unpublished.
% presented at the 13th Symposium on Accelerator Physics (SAP'17), Jishou, China, Aug. 2017, paper TUPH15, unpublished.