%0 Journal Article %A M. N. Demchenko %T Existence of a solution to the scattering problem for the ultrahyperbolic equation %J Zapiski Nauchnykh Seminarov POMI %D 2023 %P 79-94 %V 521 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2023_521_a5/ %G ru %F ZNSL_2023_521_a5