For citations:
Frenkel A.A., Tikhomirov B.I., Sergienko Y.V., Surkov A.A. Business Activity and Economic Growth: An Economic and Statistical Study. Voprosy statistiki. 2020;27(6):66-78. (In Russ.) https://doi.org/10.34023/2313-6383-2020-27-6-66-78
Frenkel A.A., Tikhomirov B.I., Sergienko Y.V., Surkov A.A. Business Activity and Economic Growth: An Economic and Statistical Study. Voprosy statistiki. 2020;27(6):66-78. (In Russ.) https://doi.org/10.34023/2313-6383-2020-27-6-66-78