%0 Journal Article %A G. V. Radzievskii %T On the basicity of derived chains %J Izvestiya. Mathematics %D 1975 %P 1119-1154 %V 9 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_1975_9_5_a8/ %G en %F IM2_1975_9_5_a8