%0 Journal Article
%A A. F. Izmailov
%A A. R. Kessel
%T Derivation of~the indirect interaction operator by~the path integral method. Exact results in~the $s-d$ exchange model
%J Teoretičeskaâ i matematičeskaâ fizika
%D 1989
%P 405-417
%V 80
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TMF_1989_80_3_a8/
%G ru
%F TMF_1989_80_3_a8