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- [2] DECREASE OF WIPE-OUT PROBABILITY OF VOICE-FREQUENCY TELEGRAPHY SIGNALS IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII RADIOELEKTRONIKA, 1978, 21 (04): : 130 - 133
- [3] TRACER - VOICE-FREQUENCY RELAY SYSTEM FOR RADIO NAVIGATION AIDS RADIO AND ELECTRONIC ENGINEER, 1975, 45 (06): : 299 - 307
- [5] A WIDEBAND MULTI-CHANNEL VOICE-FREQUENCY TELEGRAPH SYSTEM POST OFFICE ELECTRICAL ENGINEERS JOURNAL, 1967, 60 : 10 - &
- [8] NSK4 - A NEW SYSTEM OF VOICE-FREQUENCY TELEGRAPHY FOR TELECONTROL AND POWER-SYSTEM CONTROL BROWN BOVERI REVIEW, 1980, 67 (07): : 399 - 406
- [9] ANALYSIS OF SIGNAL IMITATION AND OPTIMUM ARRANGEMENT OF SIGNALING FREQUENCIES FOR VOICE-FREQUENCY SIGNALING SYSTEM ELECTRONICS & COMMUNICATIONS IN JAPAN, 1969, 52 (09): : 6 - &
- [10] A Centralized Monitoring and Analysis System of Transmission Lines in Mined-out Area 2011 6TH IEEE CONFERENCE ON INDUSTRIAL ELECTRONICS AND APPLICATIONS (ICIEA), 2011, : 2774 - 2777