%0 Journal Article %A A. B. Bazarbekov %A T. Sh. Kal'menov %T A criterion for strong solvability of the Tricomi problem for the Lavrent’ev--Bitsadze equation %J Doklady Akademii Nauk %D 1981 %P 265-268 %V 261 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1981_261_2_a0/ %G ru %F DAN_1981_261_2_a0