The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{schoellkopf:fel2019-tup006}
\bibitem{schoellkopf:fel2019-tup006}
W. Schöllkopf, W.B. Colson, M. De Pas, D. Dowell, S. Gewinner, S.C. Gottschalk, \emph{et al.},
% W. Schöllkopf, W.B. Colson, M. De Pas, D. Dowell, S. Gewinner, S.C. Gottschalk, H. Junkes, G. Meijer, J. Rathke, T. Schultheiss, A.M.M. Todd, L.M. Young, and G. von Helden,
% W. Schöllkopf \emph{et al.},
\textquotedblleft{The FHI FEL Upgrade Design}\textquotedblright,
% --- abbreviated form (published paper) - JACoW template Feb 2018 ---
in \emph{Proc. FEL'19}, Hamburg, Germany, Aug. 2019, pp. 52--55.
\url{doi:10.18429/JACoW-FEL2019-TUP006}
% --- additional material -ISSN/ISBN--
% ISBN: 978-3-95450-210-3, ISSN: ""