Wu, Lifeng
Gao, Xiaohui
Xiao, Yanli
Liu, Sifeng
Yang, Yingjie
Funding for this research was provided by:
the National Natural Science Foundation (71401051)
Humanistic and Social Science Foundation of Education Ministry (15YJA630017)
the science and technology project of science and technology department in Henan province (172102210257)