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%\cite{tsvetkov:hiat2018-thoca01} \bibitem{tsvetkov:hiat2018-thoca01} A.I. Tsvetkov, M.I. Bakulin, A.A. Bogdashov, Yu.V. Bykov, G.G. Denisov, A.G. Eremeev, \emph{et al.}, % A.I. Tsvetkov, M.I. Bakulin, A.A. Bogdashov, Yu.V. Bykov, G.G. Denisov, A.G. Eremeev, M.Yu. Glyavin, V.V. Holoptsev, E.A. Kopelovich, A.G. Luchinin, M.V. Morozkin, I.V. Plotnikov, M.Yu. Shmelev, D.I. Sobolev, E.V. Sokolov, E.A. Soluyanova, E.M. Tai, and M.M. Troitsky, % A.I. Tsvetkov \emph{et al.}, \textquotedblleft{Gyrotron Based Systems for Electron Cyclotron Resonance Ion Sources}\textquotedblright, % --- abbreviated form (UNpublished paper) - JACoW template Feb 2018 --- presented at HIAT'18, Lanzhou, China, Oct. 2018, paper THOCA01, unpublished.