Zhang, Cheng-yi
Song, Yao-yan
Luo, Shuanghua
Funding for this research was provided by:
the National Natural Science Foundations of China (11201362; 11271297)
the Science Foundation of the Education Department of Shaanxi Province of China (14JK1305)
the Natural Science Foundations of Shaanxi Province of China (2016JM1009)