BODIRSKY, M.; KNÄUER, S. Network Satisfaction for Symmetric Relation Algebras with a Flexible Atom. Proceedings of the AAAI Conference on Artificial Intelligence, [S. l.], v. 35, n. 7, p. 6218-6226, 2021. Disponível em: https://ojs.aaai.org/index.php/AAAI/article/view/16773. Acesso em: 1 jul. 2022.