%0 Journal Article %A A. Dzhuraev %T Mixed problems for first-order hyperbolic systems %J Doklady Akademii Nauk %D 1988 %P 1301-1305 %V 302 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1988_302_6_a3/ %G ru %F DAN_1988_302_6_a3