00710naa#a2200181#i#450# EN\\bibl\104926 20251012004204.7 1994-4683 20251002b2025####ek#y0engy0150####ca RU Development of a set of balance exercises for primary school children practicing volleyball Journal article Moscow National State University of Physical Education, Sports and Health named after P.F. Lesgaft 2025 4 с. Journal article local Волейбол. 796.325 Методические основы видов спорта. 77.29 grnti Gluhareva Mariya Ruslanovna uchzapiski.lesgaft.spb.ru