%0 Journal Article
%A K. T. Mynbaev
%T Approximation of the operator of differentiation in a weighted Sobolev class
%J Matematičeskie zametki
%D 1991
%P 153-154
%V 49
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_1991_49_5_a21/
%G ru
%F MZM_1991_49_5_a21