The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Ferrari:IPAC2017-WEZA2}
\bibitem{Ferrari:IPAC2017-WEZA2}
E. Ferrari,
\textquotedblleft{Polarization Control in High Gain Free Electron Lasers}\textquotedblright,
% presented at IPAC2017, Copenhagen, Denmark, May 2017, paper WEZA2, unpublished.
presented at the 8th Int. Particle Accelerator Conf. (IPAC'17), Copenhagen, Denmark, May 2017, paper WEZA2, unpublished.