ROSAS, Ennis; NAMIQ, Sarhad F. On minimal λ\(_{rc}\)-open sets. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 43, p. 868–877, 2020. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/7283. Acesso em: 6 nov. 2026.