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Phys Rev B Condens Matter
; 48(24): 18114-18118, 1993 Dec 15.
Article
in English
| MEDLINE
| ID: mdl-10008451
2.
Phys Rev B Condens Matter
; 46(23): 14995-15003, 1992 Dec 15.
Article
in English
| MEDLINE
| ID: mdl-10003610