Autonomous Planar Systems of Riccati Type. Journal of Nonlinear Modeling and Analysis, [S. l.], v. 4, n. 2, p. 171–197, 2024. DOI: 10.12150/jnma.2022.171. Disponível em: https://gsp.tricubic.dev/jnma/article/view/13635. Acesso em: 14 mar. 2026.