Authors: Porrat, D Bannister, PR Fraser-Smith, AC

Citation: D. Porrat et al., Modal phenomena in the natural electromagnetic spectrum below 5 kHz, RADIO SCI, 36(3), 2001, pp. 499-506

Authors: Bannister, PR

Citation: Pr. Bannister, Further examples of seasonal variations of ELF radio propagation parameters, RADIO SCI, 34(1), 1999, pp. 199-208