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%\cite{Bussmann:IPAC2017-FRXAA1}
\bibitem{Bussmann:IPAC2017-FRXAA1}
M.H. Bussmann, O. Boine-Frankenheim, A. Buss, L. Eidam, V. Hannen, Z. Huang, \emph{et al.},
% M.H. Bussmann, O. Boine-Frankenheim, A. Buss, L. Eidam, V. Hannen, Z. Huang, D. Kiefer, S. Klammes, T. Kühl, M. Löser, X. Ma, F. Nolden, W. Nörtershäuser, R.M. Sanchez Alarcon, U. Schramm, M. Siebold, M. Steck, T. Stöhlker, J. Ullmann, T. Walther, H. Wang, C. Weinheimer, W.Q. Wen, D.F.A. Winters, and D. Winzen,
% M.H. Bussmann \emph{et al.},
\textquotedblleft{Laser Cooling of Relativistic Heavy Ion Beams}\textquotedblright,
% presented at IPAC2017, Copenhagen, Denmark, May 2017, paper FRXAA1, unpublished.
presented at the 8th Int. Particle Accelerator Conf. (IPAC'17), Copenhagen, Denmark, May 2017, paper FRXAA1, unpublished.