A Priori Error Estimates for Obstacle Optimal Control Problem, Where the Obstacle Is the Control Itself. Journal of Computational Mathematics, [S. l.], v. 41, n. 4, p. 717–740, 2023. DOI: 10.4208/jcm.2110-m2021-0131. Disponível em: https://www.global-sci.com/index.php/JCM/article/view/12538. Acesso em: 6 dec. 2025.