ZHANG, Xiaohong; YU, Peng; SMARANDACHE, Florentin; PARK, Choonkil. Redefined neutrosophic filters in BE-algebras. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 43, p. 158–176, 2020. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/7361. Acesso em: 6 nov. 2026.