1.
Phys Rev B Condens Matter
; 54(10): R6901-R6904, 1996 Sep 01.
Article
in English
| MEDLINE
| ID: mdl-9984409
2.
Phys Rev B Condens Matter
; 54(12): 8743-8750, 1996 Sep 15.
Article
in English
| MEDLINE
| ID: mdl-9984553