KAMINSKI, M.; CUENCA GRAU, B.; KOSTYLEV, E. V.; HORROCKS, I. Complexity and Expressive Power of Disjunction and Negation in Limit Datalog. Proceedings of the AAAI Conference on Artificial Intelligence, [S. l.], v. 34, n. 03, p. 2862-2869, 2020. DOI: 10.1609/aaai.v34i03.5676. Disponível em: https://ojs.aaai.org/index.php/AAAI/article/view/5676. Acesso em: 19 aug. 2022.