1.
Evtukhov VM, Belozerova MA. Asymptotic representations of the solutions of essentially nonlinear nonautonomous second-order differential equations. Ukr. Mat. Zhurn. [Internet]. 2008Mar.25 [cited 2024Dec.4];60(3):310–331. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/3158