Upper and Lower weak $s\beta(\star)$-continuity. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 16, n. 4, p. 2544–2556, 2023. DOI: 10.29020/nybg.ejpam.v16i4.4734. Disponível em: https://www.ejpam.com/index.php/ejpam/article/view/4734.. Acesso em: 13 may. 2024.