The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
D. Wang, H.X. Deng, and Z. Jiang, “A Two-in-One Type Undulator”, in Proc. 38th Int. Free Electron Laser Conf. (FEL'17), Santa Fe, NM, USA, Aug. 2017, paper WEP063, pp. 547-549, ISBN: 978-3-95450-179-3, https://doi.org/10.18429/JACoW-FEL2017-WEP063, 2018.