WANG, Chao; WANG, Zhiguo; LIU, Qihuai. Infinitely many small bouncing solutions of Hill’s type impact oscillators nearby the origin. Topological Methods in Nonlinear Analysis, [S. l.], v. 66, n. 1, p. 215–235, 2025. DOI: 10.12775/TMNA.2025.008. Disponível em: https://apcz.umk.pl/TMNA/article/view/65993. Acesso em: 12 dec. 2025.