An Example of Piecewise Linear Systems with Infinitely Many Limit Cycles Separated by a Piecewise Linear Curve and Its Perturbations. Journal of Nonlinear Modeling and Analysis, [S. l.], v. 6, n. 3, p. 759–774, 2024. DOI: 10.12150/jnma.2024.759. Disponível em: https://www.global-sci.com/index.php/jnma/article/view/13764. Acesso em: 5 dec. 2025.