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Phys Rev B Condens Matter
; 40(2): 1392-1395, 1989 Jul 15.
Article
in English
| MEDLINE
| ID: mdl-9991984
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Phys Rev B Condens Matter
; 33(7): 4604-4614, 1986 Apr 01.
Article
in English
| MEDLINE
| ID: mdl-9938923