GREEN, W. L.; LAU, A. T.- ming. Strongly finite von Neumann algebras. MATHEMATICA SCANDINAVICA, [S. l.], v. 40, p. 105–112, 1977. DOI: 10.7146/math.scand.a-11679. Disponível em: https://www.mscand.dk/article/view/11679. Acesso em: 14 apr. 2025.