Myakinchenko, P. ., A. . Adodin, and E. . Myakinchenko. “DYNAMICS OF INDICATORS OF PHYSICAL FITNESS AND ECONOMY AS A FACTOR OF SPORTS RESULTS OF HIGH-CLASS BIATHLONISTS”. Theory and Practice of Physical Culture, no. 7, Aug. 2022, pp. 6-9, http://tpfk.ru/index.php/TPPC/article/view/273.