TY JOUR TI EXPERIENCE IN THE STUDY OF THE DURATION OF THE INFLUENCE OF OIL POLLUTION ON THE CHARACTERISTIC OF BIOELECTRIC RESISTANCE OF BIRCH (BETULA PENDULA ROTH) KW JO Bulletin of Nizhnevartovsk State University AU Kurilo, Y.A. AU Donets, E.V. AU Grigoriev, A.I. PY 2020 IS PB Nizhnevartovsk State University