TY JOUR TI Estimated criteria of quality of fruits walnut in the Central Chernozem region KW walnut KW introduction KW selection KW quality of fruits KW prospects assessment JO Forestry Engineering Journal AU Nikolaev, E.. AU Slavskiy, V.A. AU Timashchuk, D.A. PY 2015 IS 5 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov