00426    a2200133   4500001001000000005001700010008004100027245008100068100001700149700002300166700001900189773006700208999001700275ART_1212920260410161903.0260409a                                 10aFormulation and estimation of stochastic frontier production finction models1 aAigner, D.J.1 aLovell, Knox C. A.1 aSchmidt, Peter0 tJournal of econometricsg- Vol. 6, Nº 1 (jul. 1977)wREV11720  c26113d26113