1.
2.
Phys Rev B Condens Matter
; 42(10): 6217-6221, 1990 Oct 01.
Article
in English
| MEDLINE
| ID: mdl-9994699
3.
Phys Rev B Condens Matter
; 41(10): 6532-6540, 1990 Apr 01.
Article
in English
| MEDLINE
| ID: mdl-9992899