%0 Journal Article %A A. G. Kyurkchan %T Analytic continuation of a wave field in the problem of scattering %J Doklady Akademii Nauk %D 1987 %P 1350-1355 %V 292 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1987_292_6_a16/ %G ru %F DAN_1987_292_6_a16