BRIEM, Eggert. Symbolic Calculus for Subspaces of $C_0 (X)$. Mathematica Scandinavica, Berkeley, CA, United States, v. 76, p. 98–104, 1995. DOI: 10.7146/math.scand.a-12527. Disponível em: https://journals.msp.org/mscand/article/view/1099. Acesso em: 25 jul. 2026.