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Helliwell, RA.  1977.  Active Very Low Frequency Experiments on the Magnetosphere from Siple Station, Antarctica. Royal Society of London Philosophical Transactions Series B. 279:213-224.
Helliwell, RA.  1964.  Whistlers and VLF Emissions. Research in Geophysics, Volume 1: Sun, Upper Atmosphere, and Space. 1:319.
Helliwell, RA.  1972.  The structure of the plasmasphere on the basis of indirect measurements.. The Upper Atmosphere: Part IV of Solar-Terrestrial Physics/1970. :165-175.
Helliwell, RA.  1979.  Siple station experiments on wave-particle interactions in the magnetosphere. Wave instabilities in space plasmas; Proceedings of the Symposium, Helsinki, Finland, July 31-August 8, 1978. (A80-21196 07-46) Dordrecht, D. Reidel Publishing Co., 1979, p. 191-203.. :191-203.
Helliwell, RA.  1970.  The upper atmosphere as seen from Antarctica. Bulletin of the Atomic Scientists. :55-61.
Helliwell, RA.  1979.  Effects of power line radiation into the magnetosphere. Wave instabilities in space plasmas; Proceedings of the Symposium, Helsinki, Finland, July 31-August 8, 1978. (A80-21196 07-46) Dordrecht, D. Reidel Publishing Co., 1979, p. 27-36.. :27-36.
Helliwell, RA, Carpenter DL.  1963.  Whistlers Excited by Nuclear Explosions. Journal of Geophysical Research. 68:4409.
Helliwell, RA.  1975.  Coherent VLF waves in the magnetosphere. Royal Society of London Philosophical Transactions Series A. 280:137-149.