Asymptotic behavior of solutions of a third order nonlinear differential equation. Neliniini Kolyvannya, [S. l.], v. 20, n. 1, p. 74–84, 2017. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/856. Acesso em: 21 jan. 2026.