TEAM, S. $S_\beta$-Open Sets and $S_\beta$-Continuity in Topological Spaces: Alias B. Khalaf, Nehmat K. Ahmed. Thai Journal of Mathematics, [S. l.], v. 11, n. 2, p. 319–335, 2013. Disponível em: https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/380. Acesso em: 29 apr. 2024.