The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
G. Ciovati, P. Dhakal, P. Kneisel, G.R. Myneni, and J.K. Spradlin, "RF Performance of Ingot Niobium Cavities of Medium-Low Purity", in Proc. 17th International Conference on RF Superconductivity, Whistler, BC, Canada, 13-18, 2015, paper MOPB001, pp. 61-65, ISBN: 978-3-95450-178-6, doi:10.18429/JACoW-SRF2015-MOPB001, http://srf2015.vrws.de/papers/mopb001.pdf, 2015.