Portela MCAS, PC Borges and E Thanassoulis (2002). “Finding Closest Targets in Non-Oriented DEA Models: the Case of Convex and Non-Convex Technologies.” in Emrouznejad A, R Green and V Krivonozhko (eds.) Efficiency and Productivity Analysis in the 21st Century, International Research in Management Science.

Portela MCAS, PC Borges and E Thanassoulis (2002). “Finding Closest Targets in Non-Oriented DEA Models: the Case of Convex and Non-Convex Technologies.” in Emrouznejad A, R Green and V Krivonozhko (eds.) Efficiency and Productivity Analysis in the 21st Century, International Research in Management Science.

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