Evtukhov, V. M., & KorepanovaЕ. S. (2017). Asymptotic representation of solutions of differential equations with rightly varying nonlinearities. Ukrains’kyi Matematychnyi Zhurnal, 69(9), 1198-1216. Retrieved from http://umj.imath.kiev.ua/index.php/umj/article/view/1770