%0 Journal Article %A V. M. Govorov %T The first initial-boundary value problem for a hyperbolic equation with boundary function in $L_2$ %J Doklady Akademii Nauk %D 1982 %P 1044-1047 %V 262 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1982_262_5_a3/ %G ru %F DAN_1982_262_5_a3