NONSTANDARD FUZZY MATHEMATICS. Advances in Fuzzy Sets and Systems, [S. l.], v. 27, n. 1, p. 35–52, 2021. DOI: 10.17654/0973421X22002. Disponível em: https://pphmjopenaccess.com/afss/article/view/414. Acesso em: 5 jan. 2026.