%0 Journal Article %A R. M. Ganeev %T The Gellerstedt problem for a system of equations of mixed type %J Trudy seminara po kraevym zadačam %D 1978 %P 30-39 %V 15 %N 15 %I mathdoc %U http://geodesic.mathdoc.fr/item/KUKZ_1978_15_15_a3/ %G ru %F KUKZ_1978_15_15_a3