Ponomarev, G.N., N.L. Volkova, and E.V. Kvashnina. “PECULIARITIES OF THE ORGANISM RESPONSE TO PHYSICAL LOAD IN SCHOOLCHILDREN OF THE HIGHEST GRADES WITH INSUFFICIENT BODY WEIGHT”. Theory and Practice of Physical Culture, no. 9 (November 17, 2022): 60–63. Accessed March 14, 2025. http://tpf1610220.nichost.ru/index.php/TPPC/article/view/395.