$l_2$-Stability of Difference Models for Hyperbolic Initial Boundary Value Problems. Journal of Computational Mathematics, [S. l.], v. 8, n. 3, p. 212–222, 1990. Disponível em: https://www.global-sci.com/index.php/JCM/article/view/10990. Acesso em: 5 dec. 2025.