Srivastava, Siddharth, Shlomo Zilberstein, Neil Immerman, and Hector Geffner. “Qualitative Numeric Planning”. Proceedings of the AAAI Conference on Artificial Intelligence 25, no. 1 (August 4, 2011): 1010–1016. Accessed May 7, 2026. https://ojs.aaai.org/index.php/AAAI/article/view/8013.