TY  - JOUR
AU  - V. N. Kharkyanen
TI  - Generalization of the Heisenberg Hamiltonian for a crystal with allowance for orbital degrees of freedom
JO  - Teoretičeskaâ i matematičeskaâ fizika
PY  - 1977
SP  - 114
EP  - 119
VL  - 32
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TMF_1977_32_1_a9/
LA  - ru
ID  - TMF_1977_32_1_a9
ER  -