DHAGE, B. C. Basic results in the theory of hybrid differential equations with linear perturbations os second type. Tamkang Journal of Mathematics, [S. l.], v. 44, n. 2, p. 171–186, 2012. DOI: 10.5556/j.tkjm.44.2013.1086. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/1086. Acesso em: 19 apr. 2024.