A Posteriori Error Estimates of a Non-Conforming Finite Element Method for Problems with Artificial Boundary Conditions. Journal of Computational Mathematics, [S. l.], v. 27, n. 6, p. 677–696, 2021. DOI: 10.4208/jcm.2009.09-m2608. Disponível em: https://www.global-sci.com/index.php/JCM/article/view/11959. Acesso em: 5 dec. 2025.