TY JOUR TI DEVELOPMENT OF AN OPTIMIZATION ANTI-CRISIS MANAGEMENT MODEL IN INDUSTRIAL POULTRY USING MARKETING TECHNOLOGIES KW marketing KW model KW optimization KW crisis management KW poultry farming KW enterprise JO Vestnik of Kazan State Agrarian University AU Shagieva, A.H. AU Vagazova, G.I. AU Pavlova, A.A. PY 2020 IS 15 PB Kazan state agrarian University