Zhou, Jie
Li, Jun
Funding for this research was provided by:
National Science Foundation of P.R.China (71301111, 71401118, 71571150)
Research Project of Education Department of Sichuan Province (13ZB0140)
National Science Foundation of P.R.China (71271178)
National Social Science Foundation of P.R.China (15BGL198)
the Humanities and Social Science Foundation of the Ministry of Education (14YJA630026)