The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
R. Kato et al., “IR-FEL Project at the cERL and Future EUV-FEL Lithography”, presented at the 39th Free Electron Laser Conf. (FEL'19), Hamburg, Germany, Aug. 2019, paper THA03, unpublished.