ROBLES, Gemma; BLANCO, José M.; LÓPEZ, Sandra M.; PARADELA, Jesús R.; RECIO, Marcos M. Relational semantics for the 4-valued relevant logics BN4 and E4. Logic and Logical Philosophy, [S. l.], v. 25, n. 2, p. 173–201, 2016. DOI: 10.12775/LLP.2016.006. Disponível em: https://apcz.umk.pl/LLP/article/view/LLP.2016.006. Acesso em: 28 dec. 2025.