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"Nighttime Variations of Extremely Low Frequency (ELF) Signal Strengths in ..."
Peter R. Bannister et al. (1974)
- Peter R. Bannister, Frederick J. Williams, J. Robert Katan, Raymond F. Ingram:
Nighttime Variations of Extremely Low Frequency (ELF) Signal Strengths in Connecticut. IEEE Trans. Commun. 22(4): 474-476 (1974)
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