Unknown
Li, Li
;
Sun, Ji
;
Li, Jian
;
[et al.]
Yu, De-Yang
;
Liu, Gong-Ye
;
Zhang, Wei-Tian
;
Ma, Ke-Yan
;
Yang, Dong
;
Ma, Ying-Jun
;
Wu, Xiao-Guang
;
Zhu, Li-Hua
;
He, Chuang-Ye
;
Zheng, Yun
;
Yao, Shun-He
;
Li, Cong-Bo
;
Hu, Shi-Peng
;
... and further 3
Institute of Physics