%0 Journal Article
%A L. P. Nizhnik
%T The scattering problem for non-stationary perturbations
%J Doklady Akademii Nauk
%D 1960
%P 40-43
%V 132
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1960_132_1_a8/
%G ru
%F DAN_1960_132_1_a8