HOLME, A. A Generalization of the $C(X)$-Characterizations of Topological Spaces. MATHEMATICA SCANDINAVICA, [S. l.], v. 15, p. 156–162, 1964. DOI: 10.7146/math.scand.a-10739. Disponível em: https://www.mscand.dk/article/view/10739. Acesso em: 29 apr. 2024.