%0 Journal Article
%A A. G. Ramm
%T Conditions for the analyticity of the scattering matrix
%J Doklady Akademii Nauk
%D 1964
%P 1073-1076
%V 157
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1964_157_5_a16/
%G ru
%F DAN_1964_157_5_a16