Wang, Yisong, Fangzhen Lin, Mingyi Zhang, and Jia-Huai You. 2021. “A Well-Founded Semantics for Basic Logic Programs With Arbitrary Abstract Constraint Atoms”. Proceedings of the AAAI Conference on Artificial Intelligence 26 (1):835-41. https://doi.org/10.1609/aaai.v26i1.8213.