00354 a2200109 4500001001000000005001700010008004100027245006800068100002300136773006800159999001700227ART_1241520260410161906.0260409a 10aMaximum likelihood estimation of econometric frontier functions1 aGreene, William H.0 tJournal of econometricsg- Vol. 13, NÂș 1 (may. 1980)wREV11720 c26344d26344