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- [24] EFFECT ON HEARING BY VOICE-FREQUENCY ALTERNATING CURRENT AND AMPLITUDE-MODULATED HIGH FREQUENCY CURRENT ARCHIV FUR KLINISCHE UND EXPERIMENTELLE OHREN-NASEN-UND KEHLKOPFHEILKUNDE, 1969, 194 (02): : 516 - &
- [27] ANALYSIS OF SIGNAL IMITATION AND OPTIMUM ARRANGEMENT OF SIGNALING FREQUENCIES FOR VOICE-FREQUENCY SIGNALING SYSTEM ELECTRONICS & COMMUNICATIONS IN JAPAN, 1969, 52 (09): : 6 - &
- [29] Downlink beamforming for mobile radio systems with frequency division duplex PIMRC 2000: 11TH IEEE INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, VOLS 1 AND 2, PROCEEDINGS, 2000, : 72 - 76
- [30] SOME ALTERNATIVE FREQUENCY ASSIGNMENT PROCEDURES FOR MOBILE RADIO SYSTEMS RADIO AND ELECTRONIC ENGINEER, 1982, 52 (04): : 193 - 197