GASEMYR, Jorund. Involutory antiautomorphisms of von Neumann and $C^*$-algebras. Mathematica Scandinavica, Berkeley, CA, United States, v. 67, p. 87–96, 1990. DOI: 10.7146/math.scand.a-12322. Disponível em: https://journals.msp.org/mscand/article/view/1357. Acesso em: 24 jul. 2026.