1.
Bilenko VI, Bozhonok KV, Dzyadyk SY. Piecewise-polynomial approximations for the solutions of impulsive differential equations. Ukr. Mat. Zhurn. [Internet]. 2019Feb.25 [cited 2024Mar.29];71(2):168-79. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/1429