00603naa#a2200181#i#450# EN\\bibl\2566 20241218161049.3 2308-8877 20140513b2014####ek#y0engy0150####ca RUS RU Optimization of technologies of timber rafting on the small rivers Journal article Voronezh FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov 2014 4 с. Journal article local Perfilev P. Shtaborov D. anni.editorum.ru