Modified VIM for wave equations. Gulf Journal of Mathematics, [S. l.], v. 16, n. 2, p. 247–253, 2024. DOI: 10.56947/gjom.v16i2.1884. Disponível em: https://gjom.org/index.php/gjom/article/view/1884. Acesso em: 21 sep. 2026.