3AGRELL P J,BOGETOFT P,TIND J.Dynamic DEA yardsticks in Scandinavian elect ricity distribution[J].Under Revisionfor Journal of Productivity Analysis,2002b.
4Zilla Sinuany-Stern,Abraham Mehrez,Yossi Hadad,1999,An DEA/AHP method for ranking decision making units.European Journal of Operational Research.