Closed-Form Solutions and Periodic Dynamics of a Four-Dimensional Eighth-Order System of Rational Difference Equations. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 19, n. 2, p. 7817, 2026. DOI: 10.29020/nybg.ejpam.v19i2.7817. Disponível em: https://www.ejpam.com/ejpam/article/view/7817. Acesso em: 28 jul. 2026.