SILIN, V.; MALIKOV, M.; SVATIEV, A. CHANGE PECULIARITIES OF THE FUNCTIONAL STATE OF THE CARDIORESPIRATORY SYSTEM OF FOOTBALL PLAYERS AT THE AGE OF 15-17 UNDER THE INFLUENCE OF THE EXPERIMENTAL PROGRAM OF ANNUAL MICROCYCLE TRAINING SESSION. Scientific Journal of Polonia University, v. 45, n. 2, p. 143-151, 26 Aug. 2021.