%0 Journal Article %A I. E. Pleshchinskaya %T An effective solution of the Tricomi problem for a system of mixed type %J Trudy seminara po kraevym zadačam %D 1978 %P 108-116 %V 15 %N 15 %I mathdoc %U http://geodesic.mathdoc.fr/item/KUKZ_1978_15_15_a14/ %G ru %F KUKZ_1978_15_15_a14