ROBLES, G.; MÉNDEZ, J. M. A class of simpler logical matrices for the variable-sharing property. Logic and Logical Philosophy, [S. l.], v. 20, n. 3, p. 241–249, 2011. DOI: 10.12775/LLP.2011.014. Disponível em: https://apcz.umk.pl/LLP/article/view/LLP.2011.014. Acesso em: 26 apr. 2024.