The Long-Time Behavior of Spectral Approximate for Klein-Gordon-Schrödinger Equations. Journal of Computational Mathematics, [S. l.], v. 22, n. 1, p. 89–100, 2004. Disponível em: https://www.global-sci.com/index.php/JCM/article/view/11613. Acesso em: 5 dec. 2025.