Electronic Resource
Wang, Hailong
;
Xu, Liang
;
Shen, Aidong
;
[et al.]
Chen, Yunliang
;
Cui, Jie
;
Qiu, Peihua
;
Li, Qun
;
Zhuang, Dakui
;
Zhang, Cheng
;
Yang, Shaochen
;
Wang, Wenyao
[S.l.]
:
American Institute of Physics (AIP)
Journal of Applied Physics
68 (1990), S. 4338-4339