The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{chen:fel2019-wea03}
\bibitem{chen:fel2019-wea03}
Y. Chen, M. Krasilnikov, H.J. Qian, and F. Stephan,
\textquotedblleft{Emittance Budget in the Transition Regime Between Linear Emission and Space Charge Dominated Photoemission}\textquotedblright,
% --- abbreviated form (UNpublished paper) - JACoW template Feb 2018 ---
presented at FEL'19, Hamburg, Germany, Aug. 2019, paper WEA03, unpublished.