Zhang, Junzhe, and Elias Bareinboim. “Bounding Causal Effects on Continuous Outcome”. Proceedings of the AAAI Conference on Artificial Intelligence 35, no. 13 (May 18, 2021): 12207-12215. Accessed January 26, 2022. https://ojs.aaai.org/index.php/AAAI/article/view/17449.