%0 Journal Article
%A M.-B. Babayev
%T On the order of approximation of Sobolev class $W_q^r$ by bilinear forms in $L_p$ for $1\le q\le2\le p\le\infty$
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1992
%P 21-40
%V 198
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TM_1992_198_a1/
%G ru
%F TM_1992_198_a1