Olz, Conny, and Pascal Bercher. “Eliminating Redundant Actions in Partially Ordered Plans — A Complexity Analysis”. Proceedings of the International Conference on Automated Planning and Scheduling 29, no. 1 (May 25, 2021): 310-319. Accessed March 1, 2024. https://ojs.aaai.org/index.php/ICAPS/article/view/3493.