About asymptotics of solutions of a class of essentially nonlinear nonautonomous differential equations. Neliniini Kolyvannya, [S. l.], v. 27, n. 3, p. 322–345, 2024. DOI: 10.3842/nosc.v27i3.1485. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/1150. Acesso em: 6 dec. 2025.