PASCHKE, W. L. Integrable group actions on von Neumann algebras. MATHEMATICA SCANDINAVICA, [S. l.], v. 40, p. 234–248, 1977. DOI: 10.7146/math.scand.a-11692. Disponível em: https://www.mscand.dk/article/view/11692. Acesso em: 4 may. 2024.