TADROS, S. F.; KHALAF, A. B. ON REGULAR SEMI-OPEN SETS AND $S^*$-CLOSED SPACES. Tamkang Journal of Mathematics, [S. l.], v. 23, n. 4, p. 337–348, 1992. DOI: 10.5556/j.tkjm.23.1992.4557. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4557. Acesso em: 26 apr. 2024.