@article{TMF_1990_83_1_a14,
     author = {A. L. Kuzemsky and D. Marvakov},
     title = {Excitation spectrum {of~Heisenberg} antiferromagnet at~finite temperatures},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {147--157},
     publisher = {mathdoc},
     volume = {83},
     number = {1},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1990_83_1_a14/}
}