Lu, Xinhang, Jannik Peters, Haris Aziz, Xiaohui Bei, and Warut Suksompong. “Approval-Based Voting With Mixed Goods”. Proceedings of the AAAI Conference on Artificial Intelligence 37, no. 5 (June 26, 2023): 5781–5788. Accessed May 10, 2026. https://ojs.aaai.org/index.php/AAAI/article/view/25717.