00585naa#a2200193#i#450# EN\INFRA-M\bibl\5277 20251224061458.3 2306-1731 20150317b2015####ek#y0engy0150####ca RUS RU «Development» and «Self-Development» Concepts Co-Relation Taking into Account Pupils’ Teenage Years Journal article Moscow INFRA-M Academic Publishing LLC. 2015 4 с. Journal article local Kiseleva Yu. Ivanov A. Kulikova S. naukaru.ru