00530naa#a2200181#i#450# EN\\bibl\4037 20200922212120.2 2073-0462 20141214b2014####ek#y0engy0150####ca RUS RU On the essence of management forms manifolds in agrarian sphere at institutional reformation Article Kazan Kazan state agrarian University 2014 5 с. Article local Khismatullin Marsel Khafizov Dafik naukaru.ru