BANERJEE, Amar Kumar; SAHA, Pratap Kumar. Semi Open sets in bispaces. CUBO, A Mathematical Journal, [S. l.], v. 17, n. 1, p. 99–106, 2015. DOI: 10.4067/S0719-06462015000100008. Disponível em: https://cubo.ufro.cl/index.php/cubo/article/view/1154. Acesso em: 12 oct. 2025.