1.
Phys Rev B Condens Matter
; 53(19): 13086-13090, 1996 May 15.
Article
in English
| MEDLINE
| ID: mdl-9982987
2.
Phys Rev B Condens Matter
; 52(4): R2281-R2284, 1995 Jul 15.
Article
in English
| MEDLINE
| ID: mdl-9981391