Erschienen in: Transactions of the American Mathematical Society (TRAN). 2019, 371(7), pp. 5203-5246. ISSN 0002-9947. eISSN 1088-6850. Available under: doi: 10.1090/tran/7748
Erschienen in: Canadian Journal of Mathematics. 2018, 70(1), pp. 218-240. ISSN 0008-414X. eISSN 1496-4279. Available under: doi: 10.4153/CJM-2016-048-x
