ARIVAZHAGI, C.; RAJESH, N. ON UPPER AND LOWER WEAKLY \(\mathcal{I}\)-CONTINUOUS MULTIFUNCTIONS. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 36, p. 899–912, 2016. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/6472. Acesso em: 16 aug. 2026.