%0 Journal Article
%A T. M. Gataullin
%A M. V. Karasev
%T On the perturbation of the quasilevels of a~Schr\"odinger operator with complex potential
%J Teoretičeskaâ i matematičeskaâ fizika
%D 1971
%P 252-263
%V 9
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TMF_1971_9_2_a6/
%G ru
%F TMF_1971_9_2_a6