%0 Journal Article
%A D. I. Kadyrov
%T Perturbation theory for Green's spin functions
%J Doklady Akademii Nauk
%D 1969
%P 760-763
%V 189
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1969_189_4_a17/
%G ru
%F DAN_1969_189_4_a17