Li, Qiannan
Wang, Yafang http://orcid.org/0000-0003-0158-6210
Sharf, Andrei
Cao, Ya
Tu, Changhe
Chen, Baoquan
Yu, Shengyuan
Funding for this research was provided by:
National Natural Science Foundation of China (61503217)
Shandong Provincial Natural Science Foundation of China (ZR2014FP002)
The Fundamental Research Funds of Shandong University (2014TB005, 2014JC001)