1.
Phys Rev B Condens Matter
; 47(16): 10873-10880, 1993 Apr 15.
Article
in English
| MEDLINE
| ID: mdl-10005206
2.
Phys Rev B Condens Matter
; 42(7): 4763-4766, 1990 Sep 01.
Article
in English
| MEDLINE
| ID: mdl-9996013