PAOLI, F. Logic and groups. Logic and Logical Philosophy, [S. l.], v. 9, n. 9, p. 109–128, 2004. DOI: 10.12775/LLP.2001.007. Disponível em: https://apcz.umk.pl/LLP/article/view/LLP.2001.007. Acesso em: 25 apr. 2024.