【作者(必填)】Christopher Cornwell Peter Schmidt Robin C. Sickles
【文题(必填)】Production frontiers with cross-sectional and time-series variation in efficiency levels
【年份(必填)】1990
【全文链接或数据库名称(选填)】
http://www.sciencedirect.com/science/article/pii/030440769090054W
在线等待,非常感谢!