The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
L. Shi et al., “Higher Order Mode Spectra Study of 3.9 GHz Superconducting Radio Frequency Cavities for the European XFEL”, in Proc. IPAC'19, Melbourne, Australia, May 2019, pp. 1840-1843. doi:10.18429/JACoW-IPAC2019-TUPRB075