Elmurzaev, M.A., S.-A.M. Aslakhanov, N.A. Zinoviev, and N.D. Alekseeva. 2023. “BASIC AND ASSOCIATED CATEGORIES OF PHYSICAL RECREATION”. Theory and Practice of Physical Culture, no. 3 (April). http://tpfk.ru/index.php/TPPC/article/view/492.