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Phys Rev B Condens Matter
; 39(7): 4285-4290, 1989 Mar 01.
Article
in English
| MEDLINE
| ID: mdl-9948767
2.
Phys Rev B Condens Matter
; 36(4): 2298-2300, 1987 Aug 01.
Article
in English
| MEDLINE
| ID: mdl-9943082