1.
Phys Rev B Condens Matter
; 39(1): 721-724, 1989 Jan 01.
Article
in English
| MEDLINE
| ID: mdl-9947211
2.
Phys Rev B Condens Matter
; 39(1): 843-846, 1989 Jan 01.
Article
in English
| MEDLINE
| ID: mdl-9947247