1.
Phys Rev B Condens Matter
; 37(8): 4044-4050, 1988 Mar 15.
Article
in English
| MEDLINE
| ID: mdl-9945039
2.
Phys Rev B Condens Matter
; 36(14): 7646-7649, 1987 Nov 15.
Article
in English
| MEDLINE
| ID: mdl-9942542