The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{li:ipac2020-movir07} \bibitem{li:ipac2020-movir07} S. Li, \textquotedblleft{Review of Attosecond Free Electron Lasers}\textquotedblright, % --- abbreviated form (UNpublished paper) - JACoW template Feb 2018 --- presented at IPAC'20, Caen, France, May 2020, paper MOVIR07, unpublished.