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Phys Rev B Condens Matter
; 50(1): 597-600, 1994 Jul 01.
Article
in English
| MEDLINE
| ID: mdl-9974588
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Phys Rev B Condens Matter
; 45(18): 10231-10241, 1992 May 01.
Article
in English
| MEDLINE
| ID: mdl-10000926