Wang, Mingjun
Yan, Zheng
Funding for this research was provided by:
the PhD grant of Chinese Educational Ministry (JY0300130104)
111 project (B08038)
the initial grant of Chinese Educational Ministry for researchers from abroad (JY0600132901)
the grant of Shaanxi Province for excellent researchers from abroad (680F1303)
Aalto-yliopisto
NSFC (U1536202)