1.
2.
Phys Rev B Condens Matter
; 53(20): 13682-13687, 1996 May 15.
Article
in English
| MEDLINE
| ID: mdl-9983116
3.
Phys Rev B Condens Matter
; 50(15): 11255-11258, 1994 Oct 15.
Article
in English
| MEDLINE
| ID: mdl-9975251