The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{park:erl2019-tucoybs03} \bibitem{park:erl2019-tucoybs03} H. Park and J.R. Delayen, \textquotedblleft{Superconducting Twin-Axis Cavity for ERL Applications}\textquotedblright, % --- abbreviated form (UNpublished paper) - JACoW template Feb 2018 --- presented at ERL'19, Berlin, Germany, Sep. 2019, paper TUCOYBS03, unpublished.