DE MORAES, L.; ABE, J. M. Some results on Jaśkowski’s discursive logic. Logic and Logical Philosophy, [S. l.], v. 9, n. 9, p. 25–33, 2004. DOI: 10.12775/LLP.2001.002. Disponível em: https://apcz.umk.pl/LLP/article/view/LLP.2001.002. Acesso em: 25 jul. 2024.