The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{marcus:fel2019-tup032} \bibitem{marcus:fel2019-tup032} G. Marcus, Y. Ding, Y. Feng, V. Fiadonu, A. Halavanau, Z. Huang, \emph{et al.}, % G. Marcus, Y. Ding, Y. Feng, V. Fiadonu, A. Halavanau, Z. Huang, J. Krzywiński, J.P. MacArthur, R.A. Margraf, T.O. Raubenheimer, and D. Zhu, % G. Marcus \emph{et al.}, \textquotedblleft{Regenerative Amplification for a Hard X-Ray Free-Electron Laser}\textquotedblright, % --- abbreviated form (published paper) - JACoW template Feb 2018 --- in \emph{Proc. FEL'19}, Hamburg, Germany, Aug. 2019, pp. 118--121. \url{doi:10.18429/JACoW-FEL2019-TUP032} % --- additional material -ISSN/ISBN-- % ISBN: 978-3-95450-210-3, ISSN: ""