%0 Journal Article %A V. Ya. Rivkind %A N. N. Ural'tseva %T A priori estimates for quasilinear parabolic equations with discontinuous coefficients and their application in approximation methods %J Doklady Akademii Nauk %D 1969 %P 271-274 %V 185 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1969_185_2_a7/ %G ru %F DAN_1969_185_2_a7