Rogaleva, L.N., A.M. Kim, S.S. Makhanova, S.M. Galysheva, and I.I. Mamaeva. “ATTENTION, PRE-COMPETITIVE STATE AND MENTAL RELIABILITY OF BILLIARD PLAYERS DEPENDING ON THE LEVEL OF SPORTS QUALIFICATION”. Theory and Practice of Physical Culture, no. 11 (November 19, 2022): 15–18. Accessed November 22, 2024. http://tpfk.ru/index.php/TPPC/article/view/435.