Dobrynskii, V. A. (1999) “On the structure of the set of nonwandering points of a pair of coupled quadratic maps”, Ukrains’kyi Matematychnyi Zhurnal, 51(12), pp. 1704–1709. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/4773 (Accessed: 21June2024).