00506naa#a2200169#i#4500001002200000005001700022011001400039100004100053101000800094102000700102200010000109210005100209215001000260608002700270700002500297856001400322EN\INFRA-M\bibl\1245220250111122957.6##a2500-0527##a20160525b2016####ek#y0engy0150####ca0#aRUS##aRU1#aMathematical analysis of the economy: N-dimensional space. Functions. ExtremeseJournal article1#aMoscowcINFRA-M Academic Publishing LLC.d2016##a0 с.##aJournal article2local#1aCHyeryemnykhgYUriy 4#azh-szf.ru