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Phys Rev B Condens Matter
; 37(18): 10764-10768, 1988 Jun 15.
Article
in English
| MEDLINE
| ID: mdl-9944530
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Phys Rev B Condens Matter
; 32(6): 3772-3779, 1985 Sep 15.
Article
in English
| MEDLINE
| ID: mdl-9937527