00795naa#a2200205#i#450# EN\\bibl\113379 20260120004333.2 1994-4683 20250913b2025####ek#y0engy0150####ca RU The use of the frontal breathing tube for improving the technical skills of young swimmers Journal article Moscow National State University of Physical Education, Sports and Health named after P.F. Lesgaft 2025 4 с. Journal article local Вольный стиль. Кроль, например,. 797.212.4 Ivanova Elena Gennad'evna Gluhova Tat'yana Fedorovna Markina Oksana Nikolaevna Ovsyannikova Tat'yana Grigor'evna uchzapiski.lesgaft.spb.ru