Unknown
Zhen, Bai
;
Qi, Wang
;
Jian-Long, Han
;
[et al.]
Zhi-Gang, Xiao
;
Hu-Shan, Xu
;
Zhi-Yu, Sun
;
Zheng-Guo, Hu
;
Xue-Ying, Zhang
;
Hong-Wei, Wang
;
Rui-Shi, Mao
;
Xiao-Hua, Yuan
;
Zhi-Guo, Xu
;
Hong-Bin, Zhang
;
Hua-Gen, Xu
;
Hui-Rong, Qi
;
Yue, Wang
;
... and further 17
Institute of Physics