00655naa#a2200217#i#450# EN\\bibl\78737 20260220125458.5 1819-4036 20150225b2015####ek#y0engy0150####ca RUS RU THE IMPROVEMENT OF THE TANNING EXTRACT PRODUCTION FROM THE CONIFEROUS BARK WITH THE USE OF ALKALINE EXTRACTANTS Journal article Krasnoyarsk Krasnoyarsk State Agrarian University 2015 5 с. Journal article local . 630.282.1 RUS Eremenko O N Mishura P V Ryazanova T V Tok M V sej.kgau.ru