Abramowitz, Ben, and Elliot Anshelevich. “Utilitarians Without Utilities: Maximizing Social Welfare for Graph Problems Using Only Ordinal Preferences”. Proceedings of the AAAI Conference on Artificial Intelligence 32, no. 1 (April 25, 2018). Accessed September 20, 2024. https://ojs.aaai.org/index.php/AAAI/article/view/11453.