Yan, Xiaowu
Zhang, Jifu
Xun, Yaling
Qin, Xiao
Funding for this research was provided by:
National Natural Science Foundation of China (61272263)
National Science Foundation (CCF-0845257(CAREER))
Article History
First Online: 17 November 2015
Compliance with ethical standards
:
: The authors declare that there is no conflict of interests regarding the publication of this paper.