Exponential dichotomy and existence of almost periodic solutions of impulsive differential equations. Neliniini Kolyvannya, [S. l.], v. 17, n. 4, p. 546–557, 2014. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/762. Acesso em: 21 jan. 2026.