参考文献

Ma, Ling; Lu, Liping; Zhu, Miaoli; Wang, Qingming; Li, Ying; Xing, Shu; Fu, Xueqi; Gao, Zengqiang; Dong, Yuhui Dalton Transactions, 2011 , vol. 40, # 24 p. 6532 - 6540