00481naa#a2200169#i#450# EN\RIOR\bibl\2051 20250419054055.6 2500-1469 20140228b2014####ek#y0engy0150####ca RUS RU International innovation clusters as a new effective form of business Journal article Moscow Publishing Center RIOR 2014 4 с. Journal article local Cherkasov Mikhail rusjm.ru