ZHANG, X.; VAN DEN BUSSCHE, J.; WANG, K.; WANG, Z. On the Satisfiability Problem of Patterns in SPARQL 1.1. Proceedings of the AAAI Conference on Artificial Intelligence, [S. l.], v. 32, n. 1, 2018. DOI: 10.1609/aaai.v32i1.11549. Disponível em: https://ojs.aaai.org/index.php/AAAI/article/view/11549. Acesso em: 20 apr. 2024.