%0 Journal Article %T RESEARCH OF STRUCTURE MODIFIED KARBAMIDOFORMALDEGIDNYH PITCHES A NUCLEAR MAGNETIC RESONANCE-SPECTROSCOPY METHOD %A Plotnikov, N.P. %A Simikova, A.A. %A Plotnikova, G.P. %K toxicity, pitch, naftoly, connections with the condensed benzene kerne/s %J Bulletin of KSAU %D 2012 %N %P 3 %I Krasnoyarsk State Agrarian University