HINTZE, H. Merits of Leśniewski type nominalism. Logic and Logical Philosophy, [S. l.], n. 3, p. 101–114, 2003. DOI: 10.12775/LLP.1995.006. Disponível em: https://apcz.umk.pl/LLP/article/view/LLP.1995.006. Acesso em: 28 jan. 2022.