CUNTZ, J.; EVANS, D. E. Some remarks on $C^*$-algebras associated with certain topologicalMarkov chains. MATHEMATICA SCANDINAVICA, [S. l.], v. 48, p. 235–240, 1981. DOI: 10.7146/math.scand.a-11914. Disponível em: https://www.mscand.dk/article/view/11914. Acesso em: 6 may. 2024.