%0 Journal Article
%A G. V. Radzievskii
%T Direct and inverse theorems on approximation by root

%J Sbornik. Mathematics
%D 2006
%P 1037-1083
%V 197
%N 7
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_2006_197_7_a4/
%G en
%F SM_2006_197_7_a4