New Topologies between the Usual Topology and the Half-disc. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 14, n. 4, p. 1161–1168, 2021. DOI: 10.29020/nybg.ejpam.v14i4.4061. Disponível em: https://www.ejpam.com/index.php/ejpam/article/view/4061. Acesso em: 21 nov. 2024.