TOMS, A. S. Strong perforation in infinitely generated $\mathrm{K}_0$-groups of simple $C^*$-algebras. MATHEMATICA SCANDINAVICA, [S. l.], v. 96, n. 1, p. 147–160, 2005. DOI: 10.7146/math.scand.a-14949. Disponível em: https://www.mscand.dk/article/view/14949. Acesso em: 5 may. 2024.