00560naa#a2200169#i#450# EN\\bibl\5157 20240804221810.7 2308-8877 20150316b2015####ek#y0engy0150####ca RUS RU Mathematical model of transportation of 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 Kruchinin Igor Nikolaevich naukaru.ru