00785naa#a2200229#i#450# EN\\bibl\121331 20260507225906.4 1994-4683 20230803b2023####ek#y0engy0150####ca RU IMPROVING THE TECHNIQUE OF PERFORMING TURNS OF BRASSIST SWIMMERS IN THE INITIAL PERIOD OF THE EDUCATIONAL AND TRAINING STAGE OF SPORTS TRAINING Journal article Moscow National State University of Physical Education, Sports and Health named after P.F. Lesgaft 2023 6 с. Journal article local Плавание без вспомогательных средств. 797.21 uchzapiski.lesgaft.spb.ru