%0 Journal Article %A V. P. Mikhailov %T A generalized Tricomi problem %J Doklady Akademii Nauk %D 1967 %P 1012-1014 %V 175 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1967_175_5_a10/ %G ru %F DAN_1967_175_5_a10