%0 Journal Article %A G. V. Radzievskii %T On the completeness of derived chains %J Sbornik. Mathematics %D 1976 %P 35-54 %V 29 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1976_29_1_a3/ %G en %F SM_1976_29_1_a3