00653naa#a2200181#i#450# EN\\bibl\111495 20260114151636.3 1994-4683 20250913b2025####ek#y0engy0150####ca RU Improving the execution of the upper direct ball feed by qualified volleyball players 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 Danilova Galina Raufovna Konovalov Igor Evgenyevich uchzapiski.lesgaft.spb.ru