%0 Journal Article %A V. A. Eleev %T An analogue of the Tricomi problem for mixed parabolic-hyperbolic equations with a noncharacteristic line of change of type %J Differencialʹnye uravneniâ %D 1977 %P 56-63 %V 13 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1977_13_1_a8/ %G ru %F DE_1977_13_1_a8