Bareinboim, Elias, and Judea Pearl. “Controlling Selection Bias in Causal Inference”. Proceedings of the AAAI Conference on Artificial Intelligence 25, no. 1 (August 4, 2011): 1754-1755. Accessed April 17, 2024. https://ojs.aaai.org/index.php/AAAI/article/view/8056.