1.
Phys Rev B Condens Matter
; 54(10): R6803-R6806, 1996 Sep 01.
Article
in English
| MEDLINE
| ID: mdl-9984384
2.
Phys Rev B Condens Matter
; 51(24): 17499-17505, 1995 Jun 15.
Article
in English
| MEDLINE
| ID: mdl-9978773
3.
Phys Rev B Condens Matter
; 47(19): 12540-12549, 1993 May 15.
Article
in English
| MEDLINE
| ID: mdl-10005446