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Phys Rev B Condens Matter
; 40(17): 11951-11954, 1989 Dec 15.
Article
in English
| MEDLINE
| ID: mdl-9991808
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Phys Rev B Condens Matter
; 38(17): 12383-12387, 1988 Dec 15.
Article
in English
| MEDLINE
| ID: mdl-9946179
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