KATAYAMA, Yoshikazu; TAKESAKI, Masamichi. Outer actions of a discrete amenable group on approximately finite dimensional factors II, the III$_{\lambda}$-case, $\lambda\neq 0$. Mathematica Scandinavica, Berkeley, CA, United States, v. 100, n. 1, p. 75–129, 2007. DOI: 10.7146/math.scand.a-15017. Disponível em: https://journals.msp.org/mscand/article/view/680. Acesso em: 24 jul. 2026.