TY JOUR TI THE ASSESSMENT OF STABILITY OF DEVELOPMENT OF SILVER BIRCH, GROWING NEAR THE FIELDS «BORODINSKOE» AND «ITATSKOYE»OF KANSK-ACHINSK COAL BASIN KW bioindication KW pollution KW asymmetry KW developmental stability KW silver birch JO Bulletin of KSAU AU Pervyshina, G.G. AU Korotchenko, I.S. PY 2017 IS PB Krasnoyarsk State Agrarian University