%0 Journal Article %A S. N. Kruzhkov %T A priori estimate for the derivative of a solution of a parabolic equation and certain of its applications %J Doklady Akademii Nauk %D 1966 %P 501-504 %V 170 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1966_170_3_a2/ %G ru %F DAN_1966_170_3_a2