Guo, You-neng
Fang, Mao-fa
Wang, Guo-you
Hang, Jiang
Zeng, Ke
Funding for this research was provided by:
National Natural Science Foundation of China (11374096)
Natural Science Foundation of Hunan Province (2016JJ2045)
Scientific Research Project of Hunan Province Depatment of Education (16C0134)
Scientific Research Project of Hunan Province Department of Education (16C0469)