00669naa#a2200181#i#450# EN\INFRA-M\bibl\46001 20240915044544.7 2500-0543 20211103b2021####ek#y0engy0150####ca RUS RU Features of the development of the semantic side of speech in junior schoolchildren with mental retardation Journal article Moscow INFRA-M Academic Publishing LLC. 2021 16 с. Journal article local Образование. Воспитание. Обучение. Организация досуга. 37 RUS Buslaeva Mariya Evgen'evna naukaru.ru