%0 Journal Article %A Yu. A. Dubinskiǐ %T Mixed problems for certain classes of partial differential equations %J Trudy Moskovskogo matematičeskogo obŝestva %D 1969 %P 205-240 %V 20 %I mathdoc %U http://geodesic.mathdoc.fr/item/MMO_1969_20_a6/ %G ru %F MMO_1969_20_a6