Friedman L and Z Sinuany-Stern (1998). “Combining Ranking Scales and Selecting Variables in the DEA Context: the Case of Industrial Branches.” Computer and Operations Research 25(9): 781-791.
Friedman L and Z Sinuany-Stern (1998). “Combining Ranking Scales and Selecting Variables in the DEA Context: the Case of Industrial Branches.” Computer and Operations Research 25(9): 781-791.