Fu, Tsu-TanTsu-TanFuHuang, Cliff J.Cliff J.Huang2010-04-232018-06-292010-04-232018-06-291999http://ntur.lib.ntu.edu.tw//handle/246246/178102application/pdf461513 bytesapplication/pdfen-USAn Average Derivative Estimation of Stochastic Frontiersjournal articlehttp://ntur.lib.ntu.edu.tw/bitstream/246246/178102/1/20.pdf