Giokas DI and GC Pentzaropoulos (2000). “Evaluating Productive Efficiency in Telecommunications: Evidence from Greece.” Telecommunications Policy 24(8-9): 781-794.

Giokas DI and GC Pentzaropoulos (2000). “Evaluating Productive Efficiency in Telecommunications: Evidence from Greece.” Telecommunications Policy 24(8-9): 781-794.

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