Dudzyanyi SI, Perestyuk NA. On the stability of a trivial invariant torus of one class of impulsive systems. Ukr. Mat. Zhurn. [Internet]. 1998Mar.25 [cited 2024Jul.27];50(3):338–349. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/4935