00624naa#a2200169#i#450# EN\INFRA-M\bibl\125269 20260627195611.6 2500-3305 20260430b2026####ek#y0engy0150####ca RU A creative criterion in the development of musical-creative abilities of younger schoolchildren in teaching sand animation (results of the experiment) Journal article Moscow INFRA-M Academic Publishing LLC. 2026 13 с. Journal article local Начальное образование. 372.4 Levchenkov V. V. zh-szf.ru