A Priori Error Estimate and Superconvergence Analysis for an Optimal Control Problem of Bilinear Type. Journal of Computational Mathematics, [S. l.], v. 26, n. 4, p. 471–487, 2018. Disponível em: https://www.global-sci.com/index.php/JCM/article/view/11894. Acesso em: 6 dec. 2025.