SCHREYE, D. D. Integrable, ergodic actions of Abelian groups on von Neumann algebras. MATHEMATICA SCANDINAVICA, [S. l.], v. 53, p. 265–280, 1983. DOI: 10.7146/math.scand.a-12034. Disponível em: https://www.mscand.dk/article/view/12034. Acesso em: 2 may. 2024.