Wang, Xiaochun
Zhang, Minhua
Ji, Ying
Li, Zongshan
Li, Mu
Zhang, Yuandong
Funding for this research was provided by:
the Fundamental Research Funds for the Central Universities (2572014DA05)
the Program for New Century Excellent Talents in University (NCET-12-0810)
the National Natural Science Foundation of China (41471168, 31370463)
the Scientific Research Foundation for Returned Overseas Chinese Scholars Heilongjiang Province, China (LC2012C09)