The easiest polynomial differential systems in R^3 having an invariant cylinder. Extracta Mathematicae, [S. l.], v. 40, n. 1, p. 121–141, 2025. DOI: 10.17398/2605-5686.40.1.121. Disponível em: https://revista-em.unex.es/index.php/EM/article/view/2605-5686.40.1.121.. Acesso em: 14 jun. 2025.