%0 Journal Article %A R. M. Ganeev %T A problem of Tricomi type for systems of equations of mixed type %J Trudy seminara po kraevym zadačam %D 1977 %P 53-61 %V 14 %N 14 %I mathdoc %U http://geodesic.mathdoc.fr/item/KUKZ_1977_14_14_a5/ %G ru %F KUKZ_1977_14_14_a5