The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Melnikov:RuPAC2018-TUPSA08} \bibitem{Melnikov:RuPAC2018-TUPSA08} S.A. Melnikov, I.N. Meshkov, \textquotedblleft{Stability of Charged Particle Motion in a Storage Ring With Focusing by a Longitudinal Magnetic Field}\textquotedblright, % in \emph{Proc. RuPAC2018}, pp. 158--160, % in \emph{Proc. RuPAC2018}, Protvino, Russia, Oct. 2018, paper TUPSA08, pp. 158--160, in \emph{Proc. 26th Russian Particle Accelerator Conf. (RuPAC'18)}, Protvino, Russia, Oct. 2018, paper TUPSA08, pp. 158--160, % ISBN: 978-3-95450-197-7, \url{http://jacow.org/rupac2018/papers/tupsa08.pdf}, \url{https://doi.org/10.5072/JACoW-RuPAC2018-TUPSA08}, 2018.