KODAKA, Kazunori. Strong Morita equivalence for inclusions of $C^*$-algebras induced by twisted actions of a countable discrete group. Mathematica Scandinavica, Berkeley, CA, United States, v. 127, n. 2, p. 317–336, 2021. DOI: 10.7146/math.scand.a-125997. Disponível em: https://journals.msp.org/mscand/article/view/153. Acesso em: 24 jul. 2026.