Contrastive Study of the Circular Economy of Coal Resource City Based on Ecological Efficiency and C Model
YU Huilu, DONG Suocheng, LI Yu, LI Zehong, LI Fei
Journal of Resources and Ecology . 2016, (5): 323 -333 .  DOI: 10.5814/j.issn.1674-764x.2016.05.002