00559naa#a2200181#i#450# EN\\bibl\10079 20241009182250.3 2308-8877 20151203b2015####ek#y0engy0150####ca RUS RU Optimal methods raft timber Journal article Voronezh FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov 2015 3 с. Journal article local Perfilev P. Gumenchuk A. naukaru.ru