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Phys Rev B Condens Matter
; 50(16): 11556-11563, 1994 Oct 15.
Article
in English
| MEDLINE
| ID: mdl-9975287
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Phys Rev B Condens Matter
; 48(23): 17018-17030, 1993 Dec 15.
Article
in English
| MEDLINE
| ID: mdl-10008303