%0 Journal Article
%A N. N. Bogolyubov (Jr.)
%A D. Ya. Petrina
%T On a class of model systems that admit a~lowering of powers in the Hamiltonian in the thermodynamic limit. I
%J Teoretičeskaâ i matematičeskaâ fizika
%D 1977
%P 231-245
%V 33
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TMF_1977_33_2_a6/
%G ru
%F TMF_1977_33_2_a6