KHEDR, F.; SAYED, O. Generalized \(\delta-s\bigwedge _{ij}\)-sets in bitopological spaces. Malaya Journal of Matematik, India, v. 9, n. 03, p. 141–147, 2021. DOI: 10.26637/mjm0903/008. Disponível em: https://www.malayajournal.org/index.php/mjm/article/view/69. Acesso em: 20 may. 2024.