Hu Wang, Zhao Haiyan, Song Li, Yang Zhou, Cao Hui, Cheng Zihui, Liu Qing, Yang Huai
State Key Laboratory for Advanced Metals and Materials, Department of Materials Physics and Chemistry, School of Materials Science and Engineering, University of Science and Technology, Beijing, P. R. China.
Adv Mater. 2010 Jan 26;22(4):468-72. doi: 10.1002/adma.200902213.