Pikula, Bogdan, and Steve Engels. “FlexComb: A Facial Landmark-Based Model for Expression Combination Generation”. Proceedings of the AAAI Conference on Artificial Intelligence and Interactive Digital Entertainment 19, no. 1 (October 6, 2023): 337–342. Accessed May 27, 2026. https://ojs.aaai.org/index.php/AIIDE/article/view/27529.