FLORENTIN SMARANDACHE. Ambiguous Set is a subclass of the Double Refined Indeterminacy Neutrosophic Set, and of the Refined Neutrosophic Set in general. Neutrosophic Sets and Systems, [S. l.], v. 58, p. 639–643, 2023. Disponível em: https://fs.unm.edu/nss8/index.php/111/article/view/3568.. Acesso em: 13 nov. 2025.