CECCHI, M.; MARINI, M. On unbounded solutions of a class of differential equations with deviating argument. Topological Methods in Nonlinear Analysis, [S. l.], v. 1, n. 2, p. 247–258, 1993. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.1993.018. Acesso em: 22 jul. 2024.