Feyzbakhsh Rankooh, Masood, and Jussi Rintanen. “Efficient Computation and Informative Estimation of H+ by Integer and Linear Programming”. Proceedings of the International Conference on Automated Planning and Scheduling 32, no. 1 (June 13, 2022): 71-79. Accessed May 8, 2024. https://ojs.aaai.org/index.php/ICAPS/article/view/19787.