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- [6] TELEMETRY IN MULTIPROGRAM WIRE BROADCASTING HF CHANNELS TELECOMMUNICATIONS AND RADIO ENGINEER-USSR, 1971, (09): : 30 - &
- [9] PLANNING FOR THE HF BROADCASTING CONFERENCES - A PRELIMINARY INVESTIGATION TELECOMMUNICATION JOURNAL, 1983, 50 (02): : 79 - 83
- [10] FREQUENCY MANAGEMENT AND SPECTRUM UTILIZATION FOR HF BROADCASTING JOURNAL OF THE INSTITUTION OF ELECTRONIC AND RADIO ENGINEERS, 1988, 58 (04): : S38 - S44