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Phys Rev B Condens Matter
; 48(19): 14157-14160, 1993 Nov 15.
Article
in English
| MEDLINE
| ID: mdl-10007830
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Phys Rev B Condens Matter
; 46(3): 1377-1381, 1992 Jul 15.
Article
in English
| MEDLINE
| ID: mdl-10003779