LEADER 00000nam 2200205 a 4500 001 0478417 003 UkHlHU 007 t 008 003011 1 1977 000 eng 040 UkHlHU 050 4 |fq|aTK 6540 B86 81977/34) 100 1 Thoday, R. D. C. 245 12 A 2.5 GHz circularly polarized aerial. 260 Tadworth :|bResearch dept. BBC.,|c1977. 300 7p. 440 0 BBC research Department, report 1977/34 650 0 Wireless telephony. 946 020 absent -- ISBN check required
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