Lundy, Taylor, and Hu Fu. “Limitations of Incentive Compatibility on Discrete Type Spaces”. Proceedings of the AAAI Conference on Artificial Intelligence 34, no. 02 (April 3, 2020): 2136-2143. Accessed April 15, 2021. https://ojs.aaai.org/index.php/AAAI/article/view/5588.