%0 Journal Article %A O. A. Ladyzhenskaya %A N. N. Ural'tseva %T Estimates on the boundary of the domain of first derivatives of functions satisfying an elliptic or a~parabolic inequality %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1988 %P 102-125 %V 179 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_1988_179_a6/ %G ru %F TM_1988_179_a6