Asymptotic behavior of solutions of a countable system of linear differential equations with small parameters. Mathematics, Informatics, Physics: Science and Education, [S. l.], v. 2, n. 2, p. 206–215, 2025. DOI: 10.31652/3041-1955-2025-02-02-04. Disponível em: https://vspu.net/miph/index.php/journal/article/view/60. Acesso em: 16 jun. 2026.