GUO, T. L. Nonlinear impulsive fractional differential equations in Banach spaces. Topological Methods in Nonlinear Analysis, [S. l.], v. 42, n. 1, p. 221–232, 2013. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2013.034. Acesso em: 24 apr. 2024.