%0 Journal Article %A M. Meredov %T On a boundary value problem for a class of mixed equations of higher order %J Doklady Akademii Nauk %D 1973 %P 273-276 %V 208 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1973_208_2_a2/ %G ru %F DAN_1973_208_2_a2