GAO, J.; YIN, M.; ZHOU, J. Hybrid Tractable Classes of Binary Quantified Constraint Satisfaction Problems. Proceedings of the AAAI Conference on Artificial Intelligence, [S. l.], v. 25, n. 1, p. 1780-1781, 2011. DOI: 10.1609/aaai.v25i1.8049. Disponível em: https://ojs.aaai.org/index.php/AAAI/article/view/8049. Acesso em: 23 apr. 2024.