The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Zanoni:IPAC2017-WEPVA117} \bibitem{Zanoni:IPAC2017-WEPVA117} C. Zanoni, G. Gobbi, D. Perini, and G. Stancari, \textquotedblleft{Preliminary Mechanical Design Study of the Hollow Electron Lens for HL-LHC}\textquotedblright, % in \emph{Proc. IPAC2017}, pp. 3547--3550, % in \emph{Proc. IPAC2017}, Copenhagen, Denmark, May 2017, paper WEPVA117, pp. 3547--3550, in \emph{Proc. 8th Int. Particle Accelerator Conf. (IPAC'17)}, Copenhagen, Denmark, May 2017, paper WEPVA117, pp. 3547--3550, % ISBN: 978-3-95450-182-3, \url{http://jacow.org/ipac2017/papers/wepva117.pdf}, \url{https://doi.org/10.18429/JACoW-IPAC2017-WEPVA117}, 2017.