KUCEROVSKY, D.; NG, P. W. $S$-regularity and the corona factorization property. Mathematica Scandinavica, Berkeley, CA, United States, v. 99, n. 2, p. 204–216, 2006. DOI: 10.7146/math.scand.a-15009. Disponível em: https://journals.msp.org/mscand/article/view/688. Acesso em: 24 jul. 2026.