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Phys Rev B Condens Matter
; 46(7): 3826-3829, 1992 Aug 15.
Article
in English
| MEDLINE
| ID: mdl-10004106
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Phys Rev B Condens Matter
; 44(16): 8702-8706, 1991 Oct 15.
Article
in English
| MEDLINE
| ID: mdl-9998826