TY JOUR TI Structure of Undergrowth of Spruce in Different Phenological Forms on Height Depending on the Composition and Structure of Forest Stand KW natural regeneration of spruce; phenological forms of spruce undergrowth; structure of spruce undergrowth in different phenological forms in height. JO Forestry Engineering Journal AU Matveeva, A.S. AU Beliaeva, N.V. AU Danilov, D.A. PY 2017 IS 7 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov