NenyaO. I., TkachenkoV. I., & TrofimchukS. I. (2008). On sharp conditions for the global stability of a difference equation satisfying the Yorke condition. Ukrains’kyi Matematychnyi Zhurnal, 60(1), 73–80. Retrieved from https://umj.imath.kiev.ua/index.php/umj/article/view/3138