00490naa#a2200169#i#450# EN\INFRA-M\bibl\6791 20241107093534.4 2587-9111 20150810b2015####ek#y0engy0150####ca RUS RU Research on Formation of Kondratiev Cycles in Brazilian Economy Journal article Moscow INFRA-M Academic Publishing LLC. 2015 6 с. Journal article local Shishkin Andrey N. naukaru.ru