Lipovetzky, Nir, Christian Muise, and Hector Geffner. “Traps, Invariants, and Dead-Ends”. Proceedings of the International Conference on Automated Planning and Scheduling 26, no. 1 (March 30, 2016): 211-215. Accessed September 18, 2024. https://ojs.aaai.org/index.php/ICAPS/article/view/13774.