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Phys Rev B Condens Matter
; 44(13): 6961-6972, 1991 Oct 01.
Article
in English
| MEDLINE
| ID: mdl-9998580
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Phys Rev B Condens Matter
; 41(10): 6306-6314, 1990 Apr 01.
Article
in English
| MEDLINE
| ID: mdl-9992876