A. ANIS FATHIMA; V. INTHUMATHI; M. MAHESWARI. Weaker Form of $\delta$-open Sets via Ideals. International Journal of Mathematics And its Applications, [S. l.], v. 4, n. 1 - B, p. 29–35, 2016. Disponível em: http://ijmaa.in/index.php/ijmaa/article/view/564. Acesso em: 19 may. 2024.