Wandelt, Sebastian
Sun, Xiaoqian
Feng, Daozhong
Zanin, Massimiliano
Havlin, Shlomo
Funding for this research was provided by:
National Natural Science Foundation of China (61650110516, 61601013, 61521091, 91538204)
Article History
Received: 9 February 2018
Accepted: 29 August 2018
First Online: 10 September 2018
Competing Interests
: The authors declare no competing interests.