GREEN, William L.; LAU, Anthony To-ming. Strongly finite von Neumann algebras. Mathematica Scandinavica, Berkeley, CA, United States, v. 40, p. 105–112, 1977. DOI: 10.7146/math.scand.a-11679. Disponível em: https://journals.msp.org/mscand/article/view/1968. Acesso em: 25 jul. 2026.