@article{TMF_1982_53_1_a15,
     author = {V. G. Bar'yakhtar and V. N. Krivoruchko and D. A. Yablonskii},
     title = {Low-temperature expansion of spin {Green's} functions and {Dyson{\textendash}Maleev} formalism},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {156--160},
     year = {1982},
     volume = {53},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1982_53_1_a15/}
}