00491naa#a2200169#i#4500001002200000005001700022011001400039100004100053101000800094102000700102200008000109210005100189215001000240608002700250700002900277856001500306EN\INFRA-M\bibl\1464820240703172146.3##a2500-0527##a20161015b2016####ek#y0engy0150####ca0#aRUS##aRU1#aEconomic concentration as an object of scientific researcheJournal article1#aMoscowcINFRA-M Academic Publishing LLC.d2016##a0 с.##aJournal article2local#1aChistyakovagAnastasiya 4#anaukaru.ru