%0 Journal Article
%A V. N. Kharkyanen
%T Generalization of the Heisenberg Hamiltonian for a crystal with allowance for orbital degrees of freedom
%J Teoretičeskaâ i matematičeskaâ fizika
%D 1977
%P 114-119
%V 32
%N 1
%U http://geodesic.mathdoc.fr/item/TMF_1977_32_1_a9/
%G ru
%F TMF_1977_32_1_a9