KAWAHIGASHI, Yasuyuki. Centrally ergodic one-parameter automorphism groups on semifinite injective von Neumann algebras. Mathematica Scandinavica, Berkeley, CA, United States, v. 64, p. 285–299, 1989. DOI: 10.7146/math.scand.a-12258. Disponível em: https://journals.msp.org/mscand/article/view/1392. Acesso em: 24 jul. 2026.