1.
Phys Rev B Condens Matter
; 41(10): 6616-6620, 1990 Apr 01.
Article
in English
| MEDLINE
| ID: mdl-9992911
2.
Phys Rev B Condens Matter
; 41(10): 7220-7223, 1990 Apr 01.
Article
in English
| MEDLINE
| ID: mdl-9992989