OMLAND, Tron Ånen. Primeness and Primitivity Conditions for Twisted Group $C^*$-Algebras. Mathematica Scandinavica, Berkeley, CA, United States, v. 114, n. 2, p. 299–319, 2014. DOI: 10.7146/math.scand.a-17113. Disponível em: https://journals.msp.org/mscand/article/view/419. Acesso em: 24 jul. 2026.