Equivalent a Posteriori Error Estimator of Spectral Approximation for Control Problems with Integral Control-State Constraints in One Dimension. Advances in Applied Mathematics and Mechanics, [S. l.], v. 8, n. 3, p. 464–484, 2018. DOI: 10.4208/aamm.2014.m591. Disponível em: https://www.global-sci.com/aamm/article/view/4809. Acesso em: 18 apr. 2026.