TY JOUR TI MASS TRAINING IN MILITARY APPLIED SWIMMING ON THE BASIS OF GROUP CORRECTION OF TECHNICAL ELEMENTS KW military-applied swimming KW hydrogen skills KW physical training JO Scientific notes of P. F. Lesgaft University AU Grachev, K.A. AU Zyukin, A.A. AU Antonov, A.V. AU Striga, S.I. PY 2023 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft