FACK, Thierry. A Dixmier’s theorem for finite type representations of amenable semigroups. Mathematica Scandinavica, Berkeley, CA, United States, v. 93, n. 1, p. 136–160, 2003. DOI: 10.7146/math.scand.a-14417. Disponível em: https://journals.msp.org/mscand/article/view/802. Acesso em: 24 jul. 2026.