CHRISTENSEN, J.; THOMSEN, K. KMS states on crossed products by abelian groups. MATHEMATICA SCANDINAVICA, [S. l.], v. 127, n. 3, 2021. DOI: 10.7146/math.scand.a-128965. Disponível em: https://www.mscand.dk/article/view/128965. Acesso em: 22 jan. 2022.