The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
M. Li et al., “Beam Extraction Design for a 230 MeV Superconducting Cyclotron”, in Proc. 13th Symposium on Accelerator Physics (SAP'17), Jishou, China, Aug. 2017, paper MOPH02, pp. 28-30, ISBN: 978-3-95450-199-1, https://doi.org/10.18429/JACoW-SAP2017-MOPH02, 2018.