Sharkovsky, O. M., V. S. Bondarchuk, and A. G. Sivak. “Locally Maximal Attractors of Expanding Dynamical Systems”. Ukrains’kyi Matematychnyi Zhurnal 76, no. 1 (February 2, 2024): 17–30. Accessed April 1, 2025. https://umj.imath.kiev.ua/index.php/umj/article/view/7928.