Dou, Cheng-Yun
Fan, Yu-Chen
Cao, Chuang-Jie
Yang, Yang
Wang, Kai
Funding for this research was provided by:
Science and Technology Development Plan of Shandong Province (2014GSF118068)
National Natural Science Foundation of China (81171579, 81201287, 81371832)
Key Project of Chinese Ministry of Science and Technology (2012ZX10002007, 2013ZX10002001)