@article{TMF_1993_95_1_a11,
     author = {G. V. Vasyutinskii and A. A. Kazakov},
     title = {Specific heat and mean energy of {a~Heisenberg} ferromagnet in the {Green's} function method},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {127--134},
     publisher = {mathdoc},
     volume = {95},
     number = {1},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1993_95_1_a11/}
}