Li, Yuyuan, et al. “FedAU2: Attribute Unlearning for User-Level Federated Recommender Systems With Adaptive and Robust Adversarial Training”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 40, no. 28, Mar. 2026, pp. 23310-8, doi:10.1609/aaai.v40i28.39500.