00645naa#a2200193#i#450# EN\INFRA-M\bibl\22270 20240901010356.7 2306-627X 20180718b2018####ek#y0engy0150####ca RUS RU Analysis of the Problem of Regional Differentiation in the Level of Economic Activity and Unemployment Journal article Moscow INFRA-M Academic Publishing LLC. 2018 8 с. Journal article local Экономика. Экономические науки. 33 RUS Gretchenko A. I. Grischenko P. M. naukaru.ru