TY JOUR TI SPECIALIZED AGRO-INDUSTRIAL FORMATIONS AS A PART OF INSTITUTIONAL SUBSYSTEM FOR ENSURING THE EFFECTIVE FUNCTIONING OF AGRO-INDUSTRIAL CLUSTERS OF REGIONAL AGRICULTURE KW agribusiness KW efficiency KW specialized agroindustrial formation KW system KW agribusiness cluster. JO Vestnik of Kazan State Agrarian University AU Sayfutdinov , A.. PY 2015 IS 10 PB Kazan state agrarian University