Erkomayshvili, I. ., T. . Lebedihina, G. . Semenova, and V. . Kostinyuk. “Study of Physical Fitness Indicators in Female Athletes in Artistic and Aesthetic Gymnastics: A Comparative Analysis”. Theory and Practice of Physical Culture, no. 10, Dec. 2025, pp. 7-9, http://www.tpfk.ru/index.php/TPPC/article/view/1473.