XU, Siyuan; ZHU, Minghui. Efficient Gradient Approximation Method for Constrained Bilevel Optimization. Proceedings of the AAAI Conference on Artificial Intelligence, [S. l.], v. 37, n. 10, p. 12509–12517, 2023. DOI: 10.1609/aaai.v37i10.26473. Disponível em: https://ojs.aaai.org/index.php/AAAI/article/view/26473. Acesso em: 14 may. 2026.