Kyzim, Petro, Evgen Fedorov, and Nataliya Batieieva. “Features of the Development of the Coordination Abilities of Fitness Athletes Aged 8-9 Years”. Slobozhanskyi Herald of Science and Sport, no. 5(85) (December 21, 2021): 48–54. Accessed May 18, 2024. https://journals.uran.ua/index.php/1991-0177/article/view/248092.