Zhao, Jianyu
Dong, Luan
Xi, Xi
Funding for this research was provided by:
National Natural Science Foundation of China (71602041, 71602042)
National Social Science Key Project of China (14AGL004)
Natural Science Foundation of Heilongjiang Province of China (QC2017082)
Social Science Foundation of Ministry of Education of China (14YJC630142)
Fundamental Research Funds for the Central Universities of China (HEUCF170904)
Article History
Received: 8 January 2018
Revised: 28 January 2018
Accepted: 7 February 2018
First Online: 3 March 2018