Perestyuk М. О., and SlyusarchukV. Yu. “Method of Local Linear Approximation in the Theory of Nonlinear Impulsive Systems”. Ukrains’kyi Matematychnyi Zhurnal 75, no. 1 (February 5, 2023): 105 - 120. Accessed November 21, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/7347.