GALVAN, S.; GIORDANI, A. A Classical Logic of Existence and Essence. Logic and Logical Philosophy, [S. l.], v. 29, n. 4, p. 541–570, 2020. DOI: 10.12775/LLP.2020.009. Disponível em: https://apcz.umk.pl/LLP/article/view/LLP.2020.009. Acesso em: 24 apr. 2024.