Fan, Di
Wei, Lu
Cao, Maoyong
Funding for this research was provided by:
Shandong Province Young Scientist Foundation (BS2012DX034, BS2013NJ023)
China Postdoctoral Science Foundation (2012M521361)
Natural Science Foundation of Shandong Province (ZR2012EEM021)
Project of Shandong Province Higher Educational Science and Technology Program (J13LN17)
Project of South Africa/China Research Collaboration in Science and Technology (2012DFG71060)