%0 Journal Article
%A V. A. Zagrebnov
%A I. G. Brankov
%A N. S. Tonchev
%T A rigorous result on systems that interact with a boson field
%J Doklady Akademii Nauk
%D 1975
%P 71-73
%V 225
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1975_225_1_a17/
%G ru
%F DAN_1975_225_1_a17