Alsedà, Lluís, Liane Bordignon, and Jorge Groisman. “Topological Entropy, Sets of Periods, and Transitivity for Circle Maps”. Ukrains’kyi Matematychnyi Zhurnal 76, no. 1 (February 2, 2024): 31 - 47. Accessed February 26, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/7659.