00505naa#a2200169#i#450# EN\INFRA-M\bibl\15340 20240828232006.3 2587-9111 20170217b2017####ek#y0engy0150####ca RUS RU Preferential Policy and Stimulation of Competition on the Public Procurement Market Journal article Moscow INFRA-M Academic Publishing LLC. 2017 4 с. Journal article local Melnikov V. naukaru.ru