%0 Journal Article
%A M. I. Auslender
%A M. I. Katsnel'son
%T Effective spin Hamiltonian and phase separation in the almost half-filled Hubbard model and the narrow-band $s$-$f$ model
%J Teoretičeskaâ i matematičeskaâ fizika
%D 1982
%P 436-444
%V 51
%N 3
%U http://geodesic.mathdoc.fr/item/TMF_1982_51_3_a13/
%G ru
%F TMF_1982_51_3_a13