On global stability of a nonlinear functional-differential equation with impulsive effect. Neliniini Kolyvannya, [S. l.], v. 10, n. 2, p. 258–269, 2007. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/434. Acesso em: 22 jan. 2026.