Rankooh, Masood Feyzbakhsh, and Jussi Rintanen. “Propositional Encodings of Acyclicity and Reachability by Using Vertex Elimination”. Proceedings of the AAAI Conference on Artificial Intelligence 36, no. 5 (June 28, 2022): 5861-5868. Accessed August 16, 2024. https://ojs.aaai.org/index.php/AAAI/article/view/20530.