The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{halavanau:ipac2021-mopab101}
\bibitem{halavanau:ipac2021-mopab101}
A. Halavanau, S.J. Gessner, C.E. Mayes, and J.B. Rosenzweig,
\textquotedblleft{Hollow and Flat Electron Beam Generation at FACET-II}\textquotedblright,
% --- abbreviated form (published paper) - JACoW template Feb 2018 ---
in \emph{Proc. IPAC'21}, Campinas, SP, Brazil, May 2021, pp. 376--378.
\url{doi:10.18429/JACoW-IPAC2021-MOPAB101}
% --- additional material -ISSN/ISBN--
% ISBN: 978-3-95450-214-1, ISSN: 2673-5490