%0 Journal Article %A T. Sh. Kal'menov %A M. A. Sadybekov %A N. E. Erzhanov %T A criterion for the strong solvability of the Tricomi problem for the Lavrent'ev--Bitsadze equation. The general case %J Differencialʹnye uravneniâ %D 1993 %P 870-875 %V 29 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1993_29_5_a16/ %G ru %F DE_1993_29_5_a16