00624naa#a2200169#i#450# EN\\bibl\98096 20250512095800.1 2686-9896 20250428b2025####ek#y0engy0150####ca RU IMPROVING POWER SERVE IN VOLLEYBALL Journal article Angarsk Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University» 2025 1 с. Journal article local Спорт. Игры. Физическая культура в целом. 796 Rzhanov Aleksey Aleksandrovich angtu.editorum.ru