%0 Journal Article %A M. Sh. Birman %A S. B. Èntina %T A stationary approach in the abstract theory of scattering %J Doklady Akademii Nauk %D 1964 %P 506-508 %V 155 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1964_155_3_a3/ %G ru %F DAN_1964_155_3_a3