WESTERHOFF, Jan. Defining ontological categories in an expansion of belief dynamics. Logic and Logical Philosophy, [S. l.], v. 10, n. 10, p. 199–210, 2004. DOI: 10.12775/LLP.2002.012. Disponível em: https://apcz.umk.pl/LLP/article/view/LLP.2002.012. Acesso em: 13 mar. 2025.