00477naa#a2200169#i#450# EN\INFRA-M\bibl\3665 20250204193057.2 1998-0728 20141017b2014####ek#y0engy0150####ca RUS RU The First School Year As the Hardest One Journal article Moscow INFRA-M Academic Publishing LLC. 2014 6 с. Journal article local Vinogradova Natalya Fedorovna zh-szf.ru