Pelyukh, G. P. (2007) “Investigation of the structure of the set of continuous solutions of systems of nonlinear difference equations with continuous argument”, *Ukrains’kyi Matematychnyi Zhurnal*, 59(1), pp. 99–108. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/3293 (Accessed: 26March2023).