LIBERT, T. ZF and the axiom of choice in some paraconsistent set theories. Logic and Logical Philosophy, [S. l.], n. 11-12, p. 91–114, 2003. DOI: 10.12775/LLP.2003.005. Disponível em: https://apcz.umk.pl/LLP/article/view/LLP.2003.005. Acesso em: 25 jul. 2024.