00523naa#a2200181#i#450# EN\INFRA-M\bibl\4674 /en/manage/index 20250324112319.1 1998-0728 20141217b2014####ek#y0engy0150####ca RUS RU School Life Problems of aFfirst Grader Journal article Moscow INFRA-M Academic Publishing LLC. 2014 2 с. Journal article local Rydze Oxana Anatol'evna test.editorum.ru /en/manage/index