Spectral and Spectral Element Methods for High Order Problems with Mixed Boundary Conditions. Journal of Computational Mathematics, [S. l.], v. 32, n. 4, p. 392–411, 2018. DOI: 10.4208/jcm.1403-m4373. Disponível em: https://www.global-sci.com/index.php/JCM/article/view/12164. Acesso em: 6 dec. 2025.