GALLARDO, C.; ZILIANI, A. A Note on 3×3-valued Łukasiewicz Algebras with Negation. Bulletin of the Section of Logic, [S. l.], v. 50, n. 3, p. 289–298, 2021. DOI: 10.18778/0138-0680.2021.10. Disponível em: https://czasopisma.uni.lodz.pl/bulletin/article/view/8627. Acesso em: 2 may. 2024.