GEEN, W. L. Compact groups of automorphisms of von Neumann algebras. MATHEMATICA SCANDINAVICA, [S. l.], v. 37, p. 284–296, 1975. DOI: 10.7146/math.scand.a-11607. Disponível em: https://www.mscand.dk/article/view/11607. Acesso em: 24 nov. 2024.