00549naa#a2200169#i#450# EN\\bibl\2262 20260310212324.2 2308-8877 20140510b2014####ek#y0engy0150####ca RUS RU Features determination of ash in the wood pellets Journal article Voronezh FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov 2014 3 с. Journal article local Zotova Elena zh-szf.ru