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2. Deduction of ionospheric electron content from the Faraday fading of signals from artificial earth satellites;Blackband;Nature,1959
3. Blackband , W. T. B. Burgess I. L. Jones G. J. Lawson ‘The Faraday Effect and Satellite Radio Signals Propagated through the Ionosphere,’ published in ‘Structure of the Ionosphere above the F 2 Maximum,’ 42 1960
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5. IGY Conference Moscow;Townsend;Science,1959