MATSUMOTO, Kengo. K-Theory for $C^*$-algebras associated with subshifts. Mathematica Scandinavica, Berkeley, CA, United States, v. 82, n. 2, p. 237–255, 1998. DOI: 10.7146/math.scand.a-13835. Disponível em: https://journals.msp.org/mscand/article/view/993. Acesso em: 25 jul. 2026.