%0 Journal Article %A A. Dzhuraev %T A boundary value problem for a system of equations of first order in three-dimensional space %J Doklady Akademii Nauk %D 1976 %P 15-18 %V 228 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1976_228_1_a1/ %G ru %F DAN_1976_228_1_a1