HAMANA, Masamichi. On AW*-subalgrebras of type I AW*-algebras. Mathematica Scandinavica, Berkeley, CA, United States, v. 52, p. 81–88, 1983. DOI: 10.7146/math.scand.a-11996. Disponível em: https://journals.msp.org/mscand/article/view/1625. Acesso em: 25 jul. 2026.