BRIEM, E. Symbolic Calculus for Subspaces of $C_0 (X)$. MATHEMATICA SCANDINAVICA, [S. l.], v. 76, p. 98–104, 1995. DOI: 10.7146/math.scand.a-12527. Disponível em: https://www.mscand.dk/article/view/12527. Acesso em: 23 nov. 2024.