Гургула, С. І. and Перкатюк, І. Й. (2019) “ABOUT THE SECOND LIAPOUNOV’S METHOD IN SYSTEMS WITH IMPULSIVE ACTION”, PRECARPATHIAN BULLETIN OF THE SHEVCHENKO SCIENTIFIC SOCIETY. Number, (1(1), pp. 9–15. Available at: https://pvntsh.nung.edu.ua/index.php/number/article/view/336 (Accessed: 6 December 2025).