The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{bettoni:ipac2020-wevir02} \bibitem{bettoni:ipac2020-wevir02} S. Bettoni, A. Dax, M. Huppert, M. Pedrozzi, A. Trisorio, and C. Vicario, \textquotedblleft{Effect of Long Response Time Photocathode Materials on Microbunching Instability in Free Electron Laser Facilities}\textquotedblright, % --- abbreviated form (UNpublished paper) - JACoW template Feb 2018 --- presented at IPAC'20, Caen, France, May 2020, paper WEVIR02, unpublished.