1.
Phys Rev B Condens Matter
; 39(3): 1682-1688, 1989 Jan 15.
Article
in English
| MEDLINE
| ID: mdl-9948383
2.
Phys Rev B Condens Matter
; 31(2): 1041-1046, 1985 Jan 15.
Article
in English
| MEDLINE
| ID: mdl-9935852