ROBLES, G.; LÓPEZ, S. M.; BLANCO, J. M.; RECIO, M. M.; PARADELA, J. R. A 2-set-up Routley-Meyer Semantics for the 4-valued Relevant Logic E4. Bulletin of the Section of Logic, [S. l.], v. 45, n. 2, p. 93–109, 2016. DOI: 10.18778/0138-0680.45.2.03. Disponível em: https://czasopisma.uni.lodz.pl/bulletin/article/view/1480. Acesso em: 3 may. 2024.