Sun, Chang-Liang; Li, Hu; Yu, Da-Gang; Yu, Miao; Zhou, Xiao; Lu, Xing-Yu; Huang, Kun; Zheng, Shu-Fang; Li, Bi-Jie; Shi, Zhang-Jie Nature Chemistry, 2010 , vol. 2, # 12 p. 1044 - 1049