1.
Phys Rev B Condens Matter
; 54(8): R5259-R5262, 1996 Aug 15.
Article
in English
| MEDLINE
| ID: mdl-9986583
2.
Phys Rev B Condens Matter
; 53(19): 13002-13010, 1996 May 15.
Article
in English
| MEDLINE
| ID: mdl-9982977