1.
Evtukhov VM, Chernikova AG. On the asymptotic of solutions of second-order differential equations with rapidly varying nonlinearities. Ukr. Mat. Zhurn. [Internet]. 2019Jan.25 [cited 2020Nov.29];71(1):73-1. Available from: http://umj.imath.kiev.ua/index.php/umj/article/view/1420