%0 Journal Article %A M. I. Matiichuk %A I. D. Pukal'skii %T A problem with directional derivative for degenerate parabolic equation %J Matematičeskie zametki %D 1980 %P 533-544 %V 28 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1980_28_4_a5/ %G ru %F MZM_1980_28_4_a5