Some Results of Feebly Open and Feebly Closed Mappings. Baghdad Science Journal, Iraq, Baghdad, v. 6, n. 4, p. 816–821, 2009. DOI: 10.21123/bsj.2009.6.4.816-821. Disponível em: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/1048.. Acesso em: 5 jul. 2024.