%0 Journal Article %A Yu. L. Spirin %A D. K. Polyakov %A A. R. Gantmakher %A S. S. Medvedev %T The polymerization of styrene, butadiene and isoprene, initiated by lithium~-- ethyl in various media %J Doklady Akademii Nauk %D 1961 %P 899-902 %V 139 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1961_139_4_a33/ %G ru %F DAN_1961_139_4_a33