00695naa#a2200181#i#4500001001600000005001700016011001400033100004100047102000700088200010900095210011000204215001000314608002700324675007200351700003100423700002900454856003000483EN\\bibl\12743220260709073742.4##a1994-4683##a20230930b2023####ek#y0engy0150####ca##aRU1#aIMPROVING THE EFFECTIVENESS OF THE FIRST SWIMMING MOVEMENTS IN 13-14- YEAR-OLD SWIMMERSeJournal article1#aMoscowcNational State University of Physical Education, Sports and Health named after P.F. Lesgaftd2023##a3 с.##aJournal article2local##aВольный стиль. Кроль, например,. 797.212.4#1aIvchenkogElena Viktorovna#1aFedorovgPavel Olegovich4#auchzapiski.lesgaft.spb.ru