1Ramanathan R.An Analysis of Energy Consumption and Carbon Dioxide Emissions in Countries of the Middle East and North Africa[J].Energy,2005,30(15):2831-2842.
2Chung YH,Fre R,Grosskopf S.Productivity and Undesirable Outputs:a Directional Distance Function Approach[J].Journal of Environmental Management,1997,51(3):229-240.
3Sueyoshi T,Goto M.DEA Approach for Unified Efficiency Measurement:Assessment of Japanese Fossil Fuel Power Generation[J].Energy Economics,2011,33(2):292-303.
4Aida K,Cooper W W,Pastor J T,et al.Evaluating Water Supply Services in Japan with RAM:a Range-adjusted Measure of Inefficiency[J].Omega,1998,26(2):207-232.
