The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{huck:ipac2021-wepab133}
\bibitem{huck:ipac2021-wepab133}
M. Huck, J. Bahrdt, and A. Meseck,
\textquotedblleft{First Numerical Wakefield Studies of New In-Vacuum Cryogenic and APPLE II Undulators for BESSY II}\textquotedblright,
% --- abbreviated form (published paper) - JACoW template Feb 2018 ---
in \emph{Proc. IPAC'21}, Campinas, SP, Brazil, May 2021, pp. 2925--2928.
\url{doi:10.18429/JACoW-IPAC2021-WEPAB133}
% --- additional material -ISSN/ISBN--
% ISBN: 978-3-95450-214-1, ISSN: 2673-5490