A. A. Mokhonko, “On Some Solvable Classes of Nonlinear Nonisospectral Difference Equations”, Ukr. Mat. Zhurn., vol. 57, no. 3, pp. 356–365, Mar. 2005, Accessed: Feb. 17, 2026. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/3603