5CHARNES A, COOPER W W, RHODES E. Measuring the Efficiency of Decision Making Units [ J ]. European Journal of Operational Reasearch,1978,2(6) :429 -444.
6SALA-GARRIDO RAMON, HEMANDEZ-SANCHO FRANCESC, MOLINOS-SENATE MARIA. Assessing the Effi- ciency of Wastewater Treatment Plants in an Uncertain Context:A DEA with Tolerances Approach [ J ]. Environmental Science & Policy,2012,18 : 34 - 44.
7CORDINA FRASER D. An Application of Data Envelopment Analysis to Irrigated Dairy Farms in Northern Victoria, Austialia[ J ]. Agricultural Systems, 1999,59 (3) :267 - 282.
