SENAPATI, Tapan; MUHIUDDIN, G.; SHUM, K.P. REPRESENTATION OF UP -ALGEBRAS IN INTERVAL-VALUED INTUITIONISTIC FUZZY ENVIRONMENT. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 37, p. 497–518, 2017. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/6783. Acesso em: 16 sep. 2026.