ODINTSOV, S. P. Logic of classical refutability and class of extensions of minimal logic. Logic and Logical Philosophy, [S. l.], v. 9, n. 9, p. 91–107, 2004. DOI: 10.12775/LLP.2001.006. Disponível em: https://apcz.umk.pl/LLP/article/view/LLP.2001.006. Acesso em: 26 apr. 2024.