%0 Journal Article %A R. M. Garipov %T A hyperbolic boundary-value problem for the wave equation %J Doklady Akademii Nauk %D 1974 %P 777-780 %V 219 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1974_219_4_a0/ %G ru %F DAN_1974_219_4_a0