HAAGERUP, Uffe. On the dual weights for crossed products of von Neumann algebras II. MATHEMATICA SCANDINAVICA, [S. l.], v. 43, p. 119–140, 1978. DOI: 10.7146/math.scand.a-11769. Disponível em: https://tidsskrift.dk/math/article/view/11769. Acesso em: 14 aug. 2026.