Averaging the initial value and the boundary-value problems for one class of oscillating impulsive systems. Neliniini Kolyvannya, [S. l.], v. 9, n. 1, p. 68–84, 2006. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/380. Acesso em: 22 jan. 2026.