LI, L.-T.; CHENG, S. S. GLOBAL ATTRACTIVITY IN A FOUR-TERM RECURRENCE RELATION. Tamkang Journal of Mathematics, [S. l.], v. 30, n. 3, p. 223–229, 2021. DOI: 10.5556/j.tkjm.30.1999.4229. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4229. Acesso em: 19 aug. 2022.