Malinovskiy, M.S., A.V. Arishin, and A.I. Pogrebnoy. “The Relationship Between Technical and Physical Fitness Parameters in Swimmers Aged 13–14”. Theory and Practice of Physical Culture, no. 10 (December 4, 2025): 17–20. Accessed December 5, 2025. http://www.tpfk.ru/index.php/TPPC/article/view/1476.