00851naa#a2200181#i#450# EN\\bibl\111689 20260119061007.1 1994-4683 20250913b2025####ek#y0engy0150####ca RU Experience of using the universal breathing tube for swimming "Russian Snorkel - New Breath" in the training of 10-12 year old swimmers during the stage of sports specialization Journal article Moscow National State University of Physical Education, Sports and Health named after P.F. Lesgaft 2025 3 с. Journal article local Спортивная тренировка. Методика. Нагрузка. Спортивные результаты. 796.015 Dyshko Boris Aronovich Kochergin Aleksandr Borisovich uchzapiski.lesgaft.spb.ru