【作者(必填)】
EugeneYu-Ying LinPing-YuChenChi-ChungChen
【文题(必填)】
Measuring the environmental efficiency of countries: A directional distance function metafrontier approach
【年份(必填)】
2013
【全文链接或数据库名称(选填)】http://www.sciencedirect.com/sci ... 13000431?via%3Dihub