%0 Journal Article %A Kharibegashvili, S. %T On some boundary value problems for an ultrahyperbolic equation. %J Georgian Mathematical Journal %D 1998 %P 341-360 %V 5 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/GMJ_1998__5_4_48151/ %G en %F GMJ_1998__5_4_48151