%0 Journal Article %A D. Orazov %T An analoque of the Darboux problem for a hyperbolic system in three-dimensional space %J Differencialʹnye uravneniâ %D 1979 %P 178-182 %V 15 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1979_15_1_a24/ %G ru %F DE_1979_15_1_a24