ARTEMOV, Sergei; NOGINA, Elena. The topology of justification. Logic and Logical Philosophy, [S. l.], v. 17, n. 1-2, p. 59–71, 2008. DOI: 10.12775/LLP.2008.005. Disponível em: https://apcz.umk.pl/LLP/article/view/LLP.2008.005. Acesso em: 8 jul. 2025.