ZOUHAR, M. Pavel Materna, "Conceptual Systems", Logos Verlag, Berlin 2004. Logic and Logical Philosophy, [S. l.], v. 14, n. 1, p. 119–126, 2005. DOI: 10.12775/LLP.2005.009. Disponível em: https://apcz.umk.pl/LLP/article/view/LLP.2005.009. Acesso em: 20 apr. 2024.