%0 Journal Article %A F. G. Maksudov %A K. Ya. Leonov %T On the smoothness of solutions to the initial-boundary value problems for a class of semilinear hyperbolic equations %J Doklady Akademii Nauk %D 1983 %P 1308-1309 %V 273 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1983_273_6_a5/ %G ru %F DAN_1983_273_6_a5