00580naa#a2200181#i#450# EN\\bibl\76847 20260220074015.5 1819-4036 20120225b2012####ek#y0engy0150####ca RUS RU WOOD DENSITY INFLUENCE ON THE LOGGING SYSTEM PRODUCTIVITY OF THE MACHINES WHICH ARE USED IN THE AMUR REGION Journal article Krasnoyarsk Krasnoyarsk State Agrarian University 2012 4 с. Journal article local . .038.3:630.302 (571.61) RUS Kostenko N A sej.kgau.ru