TY JOUR TI ASSESSMENT OF IMPACT OF INTERREGIONAL DIFFERENCES ON DEVELOPMENT OF THE RUSSIAN FOOD INDUSTRY KW agri-food complex KW food and processing industry KW regional-industry approach KW development strategy KW specialization coefficient KW production potential KW food security KW regions of the Russian Federation KW gamma distribution JO Vestnik of Kazan State Agrarian University AU Trifonova, E.N. PY 2025 IS 20 PB Kazan state agrarian University