For citations:
Burlankov S.P., Perov V.I., Burlankov P.S., Sagina O.A. Developing Universal Methodology of Estimating Competitiveness at Enterprises of Maintenance and Technical Service. Vestnik of the Plekhanov Russian University of Economics. 2021;(5):148-155. (In Russ.) https://doi.org/10.21686/2413-2829-2021-5-148-155