%0 Journal Article %A F. G. Maksudov %A F. A. Aliev %T A problem for a higher-order nonlinear hyperbolic equation with %J Doklady Akademii Nauk %D 1991 %P 673-676 %V 321 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1991_321_4_a6/ %G ru %F DAN_1991_321_4_a6