Asymptotic behavior of solutions of ordinary nonlinear differential equation of order $n$. Neliniini Kolyvannya, [S. l.], v. 13, n. 1, p. 133–145, 2010. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/555. Acesso em: 21 jan. 2026.