Raizikh, A.A., S.S. Maksimova, and A.E. Alabuzhev. “THEORETICAL AND PRACTICAL TESTS IN ALL-RUSSIAN SCHOOL PHYSICAL EDUCATION OLYMPIAD”. Theory and Practice of Physical Culture, no. 12 (January 11, 2022): 50–52. Accessed February 9, 2025. http://tpf1610220.nichost.ru/index.php/TPPC/article/view/87.