00691naa#a2200169#i#450# EN\\bibl\109461 20260205161836.4 1994-4683 20250913b2025####ek#y0engy0150####ca RU Factors influencing the choice of organizational and methodological support for highly qualified stayer swimmers Journal article Moscow National State University of Physical Education, Sports and Health named after P.F. Lesgaft 2025 2 с. Journal article local Плавание без вспомогательных средств. 797.21 Karpova Svetlana Nikolaevna uchzapiski.lesgaft.spb.ru