For citations:

Sharipov U.A. Approaches to Upgrading Strategies of Attracting Highly-Technological Companies to Preferential Zones of the Tula Region. Vestnik of the Plekhanov Russian University of Economics. 2023;(4):77-87. (In Russ.) https://doi.org/10.21686/2413-2829-2023-4-77-87