COUCHOURON, J.-F.; KAMENSKIĬ, M. I. Averaging method for neutral differential equations in finite dimension. Topological Methods in Nonlinear Analysis, [S. l.], v. 35, n. 2, p. 221–233, 2010. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2010.013. Acesso em: 22 jul. 2024.