00538naa#a2200169#i#450# EN\INFRA-M\bibl\36987 20240420050136.6 2306-1731 20200410b2020####ek#y0engy0150####ca RU Features of the Development of the Modern Child Journal article Moscow INFRA-M Academic Publishing LLC. 2020 2 с. Journal article local Статистика. Демография. Социология. 31 Nekrasova I. V. riorpub.com