A superconducting CW-LINAC for heavy ion acceleration at GSIWinfried Barth, Kurt Aulenbacher, Markus Basten, Florian Dziuba, Viktor Gettmann, Maksym Miski-Oglu, Holger Podlech and Stepan YaramyshevEPJ Web Conf., 138 (2017) 01026DOI: https://doi.org/10.1051/epjconf/201713801026