FRIGON, M.; GILBERT, H. Systems of first order inclusions on time scales. Topological Methods in Nonlinear Analysis, [S. l.], v. 37, n. 1, p. 147–163, 2011. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2011.007. Acesso em: 27 apr. 2024.