Sedaghat, Hassan. “Global Attractivity, Oscillations and Chaos in A Class of Nonlinear, Second Order Difference Equations”. CUBO, A Mathematical Journal 7, no. 2 (August 1, 2005): 89–110. Accessed October 12, 2025. https://cubo.ufro.cl/index.php/cubo/article/view/1545.