Behavior and Solution Representations of Fourth-Order Rational Systems of Difference Equations. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 18, n. 3, p. 6218, 2025. DOI: 10.29020/nybg.ejpam.v18i3.6218. Disponível em: https://www.ejpam.com/ejpam/article/view/6218. Acesso em: 23 feb. 2026.