Zernov, A.E. and Kuzina, Y.V. 2002. Asymptotic Behavior of Solutions of the Cauchy Problem <em class="a-plus-plus">x</em>′ = <em class="a-plus-plus">f</em>(<em class="a-plus-plus">t</em>, <em class="a-plus-plus">x</em>, <em class="a-plus-plus">x</em>′), <em class="a-plus-plus">x</em&gt;(0) = 0. Ukrains’kyi Matematychnyi Zhurnal. 54, 12 (Dec. 2002), 1698-1703.