Fitina, L.N., N.B. Serova, A.M. Burkova, and L.K. Tropina. “Activities of Municipal Sports Schools and Olympic Reserve Schools in Large Cities of Russia (for 2024)”. Theory and Practice of Physical Culture, no. 12 (January 14, 2026): 54–57. Accessed February 4, 2026. http://tpf1610220.nichost.ru/index.php/TPPC/article/view/1541.