SHRAMKO, Y. Relevant properties. Logic and Logical Philosophy, [S. l.], n. 2, p. 103–115, 2003. DOI: 10.12775/LLP.1994.007. Disponível em: https://apcz.umk.pl/LLP/article/view/LLP.1994.007. Acesso em: 25 jul. 2024.