Testing of next generation networks (201
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Operational Bulletin No. 661 (1.II.1998) (01.02.1998)
Operational Bulletin No. 747 (1.IX.2001)
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Earthing of Telecommunication Installati
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OSI Directory -Models
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Operational Bulletin No. 663 (1.III.1998
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Handbk Marinized Terrestrial Cables 2001
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