Тагиров КТ, Игнатова ТВ. COMPARATIVE CHARACTERISTICS OF EFFICIENCY OF CITY’S BUSINESS ENVIRONMENT OF SMALL AND MEDIUM-SIZE CITIES IN RUSSIA: CASE OF THE CITY OF DERBENT. ГМУ_УЗ. 2020;1(3):157-165. doi:10.22394/2079-1690-2020-1-3-157-165