1.
Phys Rev B Condens Matter
; 42(7): 4255-4262, 1990 Sep 01.
Article
in English
| MEDLINE
| ID: mdl-9995951
2.
Phys Rev B Condens Matter
; 38(1): 859-862, 1988 Jul 01.
Article
in English
| MEDLINE
| ID: mdl-9945278