GONG, Guihua. On inductive limits of matrix algebras over higher dimensional spaces, part II. Mathematica Scandinavica, Berkeley, CA, United States, v. 80, p. 56–100, 1997. DOI: 10.7146/math.scand.a-12612. Disponível em: https://journals.msp.org/mscand/article/view/1018. Acesso em: 24 jul. 2026.