Sharkovsky, O. M., V. S. Bondarchuk, and A. G. Sivak. “Locally Maximal Attractors of Expanding Dynamical Systems”. Ukrains’kyi Matematychnyi Zhurnal, Vol. 76, no. 1, Feb. 2024, pp. 17 -30, doi:10.3842/umzh.v76i1.7928.