00589naa#a2200181#i#450# EN\INFRA-M\bibl\39672 20240723072142.2 2500-3291 20201001b2020####ek#y0engy0150####ca RU Analysis of labor productivity in the North-Western Federal District Journal article Moscow INFRA-M Academic Publishing LLC. 2020 6 с. Journal article local Экономика. Экономические науки. 33 Ivanovskaya V. Yu. Ivanovskaya A. L. naukaru.ru