Portela MCAS, PC Borges and E Thanassoulis (2003). “Finding Closest Targets in Non-Oriented DEA Models: the Case of Convex and Non-Convex Technologies.” JPA 19(2-3): 251-269.

Portela MCAS, PC Borges and E Thanassoulis (2003). “Finding Closest Targets in Non-Oriented DEA Models: the Case of Convex and Non-Convex Technologies.” JPA 19(2-3): 251-269.

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