Wu, X.
Liu, L. F.
Yao, Y. J.
Wang, M. L.
Wang, B. B.
Li, Y. J.
Funding for this research was provided by:
Ministry of Science and Technology of the People's Republic of China (2011GB113004)
the Shanghai Commission of Science and Technology (11DZ1100402)
Natural Science Foundation of Jilin Province (11204174)