Гургула, Степан Іванович, and Роман Іванович Собкович. 2019. “STABILITY OF SOLUTIONS OF SYSTEMS WITH IMPULSIVE ACTIONS”. PRECARPATHIAN BULLETIN OF THE SHEVCHENKO SCIENTIFIC SOCIETY. Number, no. 1(13) (March):30-35. https://pvntsh.nung.edu.ua/index.php/number/article/view/258.