Fedulova, D.V., and N.B. Serova. “PHYSICAL DEVELOPMENT OF ATHLETES OF CYCLIC SPORTS SPECIALIZING IN ATHLETICS AND CROSS-COUNTRY SKIING”. Theory and Practice of Physical Culture, no. 11 (November 20, 2022): 36–38. Accessed November 22, 2024. http://tpfk.ru/index.php/TPPC/article/view/442.