KOSAKI, H. Positive cones associated with a von Neumann algebra. MATHEMATICA SCANDINAVICA, [S. l.], v. 47, p. 295–307, 1980. DOI: 10.7146/math.scand.a-11891. Disponível em: https://www.mscand.dk/article/view/11891. Acesso em: 29 apr. 2024.