Abdulaziz, Mohammad, Charles Gretton, and Michael Norrish. “A State-Space Acyclicity Property for Exponentially Tighter Plan Length Bounds”. Proceedings of the International Conference on Automated Planning and Scheduling 27, no. 1 (June 5, 2017): 2-10. Accessed September 18, 2024. https://ojs.aaai.org/index.php/ICAPS/article/view/13837.