The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
J.M. Köszegi, J. Knobloch, and O. Kugeler, “Towards the Perfect Meissner State: A Magneto-Optical Study on Competing Pinning Centers in Niobium”, in Proc. 18th Int. Conf. on RF Superconductivity (SRF'17), Lanzhou, China, July 2017, paper THPB018, pp. 766-770, ISBN: 978-3-95450-191-5, https://doi.org/10.18429/JACoW-SRF2017-THPB018, 2018.