基于DEA-Malmquist指数的煤炭企业新旧动能转换绩效评价
吴树畅, 于静
Performance Evaluation of New and Old Kinetic Energy Conversion of Coal Enterprises based on DEA-Malmquist Index
煤炭工程 . 2020, (9): 183 -187 .  DOI: 10.11799/ce202009037