%0 Journal Article
%A D. R. Yafaev
%T On the virtual state of Schr\"odinger equation
%J Zapiski Nauchnykh Seminarov POMI
%D 1975
%P 203-216
%V 51
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZNSL_1975_51_a15/
%G ru
%F ZNSL_1975_51_a15