Pokhachevsky, A. ., A. . Petrov, A. . Kalinin, M. . Baranova, and N. . Birchenko. “LOAD ADAPTATION OF THE HEART RATE OF QUALIFIED WRESTLERS”. Theory and Practice of Physical Culture, no. 10, Nov. 2022, pp. 40-43, http://tpfk.ru/index.php/TPPC/article/view/417.