TYAGI, B. K.; LUTHRA, Sheetal; CHAUHAN, Harsh V. S. On New Types of Sets Via γ-open Sets in (𝑎)Topological Spaces. CUBO, A Mathematical Journal, [S. l.], v. 20, n. 2, p. 41–52, 2018. DOI: 10.4067/S0719-06462018000200041. Disponível em: https://cubo.ufro.cl/index.php/cubo/article/view/2049. Acesso em: 12 oct. 2025.