%0 Journal Article %T THE FLUCTUATING ASYMMETRY OF THE FLAT-LEAVED BIRCH LEAVES (BETULA PLATYPHYLLA SUKACZ.) AS THE ENVIRONMENT QUALITATIVE CRITERION %A Nizkii, S.E. %A Sergeeva, A.A. %K fluctuating asymmetry, flat-leaved birch (Betula platyphylla Sukacz.), leaf plate, square, park, environment quality, algorithm of the rated difference, variation degree, average quadratic deviation %J Bulletin of KSAU %D 2015 %N %P 3 %I Krasnoyarsk State Agrarian University