Perturbation theory for the Green's functions of the Heisenberg model with single-ion anisotropy
1975 ◽
Vol 23
(2)
◽
pp. 512-517
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2009 ◽
Vol 89
(22-24)
◽
pp. 2043-2069
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1984 ◽
Vol 58
(3)
◽
pp. 220-223
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Keyword(s):
1976 ◽
Vol 28
(3)
◽
pp. 882-886
◽