KOSAKI, Hideki. 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://tidsskrift.dk/math/article/view/11891. Acesso em: 13 aug. 2026.