1.
Phys Rev B Condens Matter
; 44(20): 11075-11084, 1991 Nov 15.
Article
in English
| MEDLINE
| ID: mdl-9999227
2.
Phys Rev B Condens Matter
; 42(17): 11114-11122, 1990 Dec 15.
Article
in English
| MEDLINE
| ID: mdl-9995393