00719naa#a2200181#i#450# EN\\bibl\114330 20260325171245.3 1994-4683 20260325b2026####ek#y0engy0150####ca RU Thematic study of characteristics determining the effectiveness of the turn in backstroke swimming Journal article Moscow National State University of Physical Education, Sports and Health named after P.F. Lesgaft 2026 7 с. Journal article local Плавание без вспомогательных средств. 797.21 Vinogradov Evgeniy Olegovich Krylov Andrey Ivanovich uchzapiski.lesgaft.spb.ru