00477naa#a2200169#i#450# EN\INFRA-M\bibl\4665 20250428172657.1 1998-0728 20141217b2014####ek#y0engy0150####ca RUS RU The First School Year As the Hardest One Journal article Moscow INFRA-M Academic Publishing LLC. 2014 5 с. Journal article local Vinogradova Natalya Fedorovna zh-szf.ru