%0 Journal Article
%A N. N. Ural'tseva
%T On impossibility of $W_q^2$-estimates for the elliptic equations in several variables with discontinuous coefficients
%J Zapiski Nauchnykh Seminarov POMI
%D 1967
%P 250-254
%V 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZNSL_1967_5_a10/
%G ru
%F ZNSL_1967_5_a10