The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Dudnikov:NAPAC2016-WEPOA45} \bibitem{Dudnikov:NAPAC2016-WEPOA45} V.G. Dudnikov, G. Dudnikova, B. Han, R.P. Johnson, S. Murrey, T.R. Pennisi, \emph{et al.}, % V.G. Dudnikov, G. Dudnikova, B. Han, R.P. Johnson, S. Murrey, T.R. Pennisi, C. Piller, M. Santana, C. Stinson, M.P. Stockli, and R.F. Welton, % V.G. Dudnikov \emph{et al.}, \textquotedblleft{Positive and Negative Ions Radio Frequency Sources with Solenoidal Magnetic Field}\textquotedblright, % in \emph{Proc. NAPAC2016}, pp. 799--802, % in \emph{Proc. NAPAC2016}, Chicago, IL, USA, Oct. 2016, paper WEPOA45, pp. 799--802, in \emph{Proc. North American Particle Accelerator Conf. (NAPAC'16)}, Chicago, IL, USA, Oct. 2016, paper WEPOA45, pp. 799--802, % ISBN: 978-3-95450-180-9, \url{https://jacow.org/napac2016/papers/wepoa45.pdf}, \url{https://doi.org/10.18429/JACoW-NAPAC2016-WEPOA45}, 2017.