%0 Journal Article %T THE ABSORPTION SPECTRA AND THE CHEMICAL COMPOSITION OF THE PEAT HUMIC ACIDS IN KHANTY-MANSI AUTONOMOUS OKRUG - YUGRA %A Rybachuk, O.V. %A Osnitskiy, E.M. %A Sartakov, M.P. %K humic acids, hymatomelanic acids, peat %J Bulletin of KSAU %D 2015 %N %P 5 %I Krasnoyarsk State Agrarian University