URCHS, M. Deductive models and practical reasoning. Logic and Logical Philosophy, [S. l.], v. 5, n. 5, p. 149–165, 2003. DOI: 10.12775/LLP.1997.010. Disponível em: https://apcz.umk.pl/LLP/article/view/LLP.1997.010. Acesso em: 4 jul. 2024.