TY  - JOUR
A1  - Charnes, A.
A1  - Cooper, W.W.
A1  - Rhodes, E.
T1  - Measuring the efficiency of decision units
Y1  - 1978
DO  - 10.1016/0377-2217(78)90138-8
JF  - European Journal of Operational Research
VL  - 2
IS  - 6
SP  - 429
EP  - -444

ER  -