PENG, Chang-Wen. THE FIXED POINT OF MEROMORPHIC SOLUTIONS FOR DIFFERENCE RICCATI EQUATION. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 39, p. 140–153, 2018. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/6942. Acesso em: 7 oct. 2026.