Melnikov Functions for a Class of Piecewise Hamiltonian Systems. Journal of Nonlinear Modeling and Analysis, [S. l.], v. 5, n. 1, p. 123–145, 2024. DOI: 10.12150/jnma.2023.123. Disponível em: https://gsp.tricubic.dev/jnma/article/view/13679. Acesso em: 15 mar. 2026.