Research on the Optimization of Capital for the Governance of Bulk Coal in Beijing-Tianjin-Hebei Region
DU Xiaolin,FENG Xiangzhao,ZHAO Mengxue,WANG Min
Journal of Resources and Ecology . 2019, (1): 48 -55 .  DOI: 10.5814/j.issn.1674-764X.2019.01.006