Jia, Lihua
Li, Yanhui
Chen, Juan
Guo, Xiangfeng
Lou, Shengfeng
Duan, Hailong
Funding for this research was provided by:
the Science Research Project of the Ministry of Education of Heilongjiang Province of China (2012TD012, 12511Z030, 12521594, JX201205)
the Graduate Innovation Fund of Heilongjiang Province of China (YJSCX2013-014X)