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Phys Rev B Condens Matter
; 52(9): 6230-6237, 1995 Sep 01.
Article
in English
| MEDLINE
| ID: mdl-9981851
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Phys Rev B Condens Matter
; 51(5): 2687-2693, 1995 Feb 01.
Article
in English
| MEDLINE
| ID: mdl-9979039