“Existence and Asymptotic Behavior of Solutions of the Cauchy Problem $x(x^\prime)^\gamma=f(t,x,x^\prime)$, $x(0)=0$”. Neliniini Kolyvannya 6, no. 2 (June 29, 2003): 178–190. Accessed April 12, 2026. https://nosc.imath.kiev.ua/index.php/nosc/article/view/259.