http://reply.papertrans.cn/4/303/30213/30213-21.png
http://reply.papertrans.cn/4/303/30213/30213-22.png
http://reply.papertrans.cn/4/303/30213/30213-23.png
Submitted on: 30 July 2016.
Revised on: 19 August 2016.
Accepted on: 09 September 2016.
NULL
http://reply.papertrans.cn/4/303/30213/30213-25.png
http://reply.papertrans.cn/4/303/30213/30213-26.png
http://reply.papertrans.cn/4/303/30213/30213-27.png
Submitted on: 18 July 2015.
Revised on: 31 July 2015.
Accepted on: 17 August 2015.
Urban Science---MDPI
http://reply.papertrans.cn/4/303/30213/30213-29.png
http://reply.papertrans.cn/4/303/30213/30213-30.png