The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
L.G. Yan et al., “Magnetic Measurement of the Undulator U38 for THz-FEL”, in Proc. 13th Symposium on Accelerator Physics (SAP'17), Jishou, China, Aug. 2017, paper TUPH21, pp. 156-158, ISBN: 978-3-95450-199-1, https://doi.org/10.18429/JACoW-SAP2017-TUPH21, 2018.