Robert K. Heldman

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Future Telecommunications: Information Applications, Services and Infrastructure
Heldman, Robert K.

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� 2.82

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Information Telecommunications: Networks, Products and Services
Heldman, Robert K.

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� 38.46

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Telecommunications Information Millennium: A Vision and Plan for the Global Information Society
Heldman, Robert K.

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� 63.68

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Heldman: ∗isdn∗ In The Information Marketplace
HELDMAN, RK

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Global telecommunications: Layered networks' layered services

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� 3.09

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