OLESEN, D.; PEDERSEN, G. K. Some $C^*$-dynamical systems with a single KMS state. MATHEMATICA SCANDINAVICA, [S. l.], v. 42, p. 111–118, 1978. DOI: 10.7146/math.scand.a-11740. Disponível em: https://www.mscand.dk/article/view/11740. Acesso em: 24 nov. 2024.