TY JOUR TI STABILITY EVALUATION OF PHOTOSYNTHETIC APPARATUS OF TILIA CORDATA MILL. IN THE GRADIENT OF TECHNOGENIC POLLUTION IN VLADIKAVKAZ KW pigments KW anatomical and morphological features KW small-leaved linden KW air pollution index KW technogenic environmental pollution JO Forestry Engineering Journal AU Mamieva, E.B. AU Shirnina, L.V. AU Popova, V.T. PY 2022 IS 12 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov