The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
K.N. Nii et al., “Nb Single-cell Cavity Vertical Electro-polishing with Ninja Cathode and Evaluation of its Accelerating Gradient”, in Proc. 18th Int. Conf. on RF Superconductivity (SRF'17), Lanzhou, China, July 2017, paper TUPB093, pp. 612-615, ISBN: 978-3-95450-191-5, https://doi.org/10.18429/JACoW-SRF2017-TUPB093, 2018.