00534naa#a2200181#i#450# EN\\bibl\8211 20241126162519.2 2073-0462 20150915b2015####ek#y0engy0150####ca RUS RU METHODICAL BASIS OF INSTITUTIONAL AND ECONOMIC MECHANISM OF GRAIN PRODUCTS SYSTEMS Journal article Kazan Kazan state agrarian University 2015 2 с. Journal article local Zakharova Galina Amirova Elmira naukaru.ru