REDL, Christoph. On Equivalence and Inconsistency of Answer Set Programs with External Sources. Proceedings of the AAAI Conference on Artificial Intelligence, [S. l.], v. 31, n. 1, 2017. DOI: 10.1609/aaai.v31i1.10671. Disponível em: https://ojs.aaai.org/index.php/AAAI/article/view/10671. Acesso em: 30 may. 2026.