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Phys Rev B Condens Matter
; 47(20): 13453-13461, 1993 May 15.
Article
in English
| MEDLINE
| ID: mdl-10005653
2.
Phys Rev B Condens Matter
; 46(20): 13363-13370, 1992 Nov 15.
Article
in English
| MEDLINE
| ID: mdl-10003383