@article{TM_1975_136_a31, author = {Yu. A. Tserkovnikov and Yu. G. Rudoi}, title = {The spectrum and correlation functions of {Heisenberg's} anisotropic ferromagnet}, journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova}, pages = {414--424}, publisher = {mathdoc}, volume = {136}, year = {1975}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TM_1975_136_a31/} }