The Longtime Behavior of an SIR Epidemic Model with Free Boundaries. Journal of Nonlinear Modeling and Analysis, [S. l.], v. 6, n. 2, p. 476–484, 2024. DOI: 10.12150/jnma.2024.476. Disponível em: https://www.global-sci.com/index.php/jnma/article/view/13748. Acesso em: 6 dec. 2025.