The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{tanikawa:fel2019-tup004}
\bibitem{tanikawa:fel2019-tup004}
T. Tanikawa, V.B. Asgekar, S. Casalbuoni, G. Geloni, M. Gensch, S. Karabekyan, \emph{et al.},
% T. Tanikawa, V.B. Asgekar, S. Casalbuoni, G. Geloni, M. Gensch, S. Karabekyan, S. Kovalev, and S. Serkez,
% T. Tanikawa \emph{et al.},
\textquotedblleft{A Superradiant THz Undulator Source for XFELs}\textquotedblright,
% --- abbreviated form (published paper) - JACoW template Feb 2018 ---
in \emph{Proc. FEL'19}, Hamburg, Germany, Aug. 2019, pp. 48--51.
\url{doi:10.18429/JACoW-FEL2019-TUP004}
% --- additional material -ISSN/ISBN--
% ISBN: 978-3-95450-210-3, ISSN: ""