%0 Journal Article %A A. D. Dzhuraev %T A linear boundary value problem for a system of composite partial differential equations %J Izvestiya. Mathematics %D 1967 %P 525-543 %V 1 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_1967_1_3_a2/ %G en %F IM2_1967_1_3_a2