1.
2.
Phys Rev B Condens Matter
; 40(7): 4453-4462, 1989 Sep 01.
Article
in English
| MEDLINE
| ID: mdl-9992436
3.
Phys Rev B Condens Matter
; 36(16): 8665-8668, 1987 Dec 01.
Article
in English
| MEDLINE
| ID: mdl-9942691