The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
E. Schneidmiller et al., “Considerations for the Ultrahard X-ray Undulator Line of the European XFEL”, in Proc. IPAC'19, Melbourne, Australia, May 2019, pp. 1732-1735. doi:10.18429/JACoW-IPAC2019-TUPRB023