RABIER, P. J.; STUART, C. A. Boundary value problems for first order systems on the half-line. Topological Methods in Nonlinear Analysis, [S. l.], v. 25, n. 1, p. 101–131, 2005. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2005.005. Acesso em: 27 apr. 2024.