The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
I. Pinayev et al., “Helical Undulators for Coherent Electron Cooling System”, in Proc. 38th Int. Free Electron Laser Conf. (FEL'17), Santa Fe, NM, USA, Aug. 2017, paper WEP051, pp. 519-521, ISBN: 978-3-95450-179-3, https://doi.org/10.18429/JACoW-FEL2017-WEP051, 2018.