BondarevB. V., and KovtunE. E. 2005. “Estimates for the Rate of Convergence in Ordinary Differential Equations under the Action of Random Processes With Fast Time”. Ukrains’kyi Matematychnyi Zhurnal 57 (4), 435–457. https://umj.imath.kiev.ua/index.php/umj/article/view/3611.