PLASMA-ELECTROMAGNETIC INTERACTION

Park, CG, Helliwell RA.  1978.  Magnetospheric effects of power line radiation. Science. 200:727-730.

Helliwell, RA.  1988.  VLF wave stimulation experiments in the magnetosphere from Siple Station, Antarctica. Reviews of Geophysics. 26:551-578.

Inan, US, Chang H  C, Helliwell RA, Imhof W  L, Reagan J  B, Walt M.  1985.  Precipitation of radiation belt electrons by man-made waves A comparison between theory and measurement. Journal of Geophysical Research. 90:359-369.

Inan, US, Chang H  C, Helliwell RA.  1984.  Electron precipitation zones around major ground-based VLF signalsources. Journal of Geophysical Research. 89:2891-2906.

Sonwalkar, VS, Bell TF, Helliwell RA, Inan US.  1984.  Direct multiple path magnetospheric propagation - A fundamental property of nonducted VLF waves. Journal of Geophysical Research. 89:2823-2830.

Inan, US, Bell TF, Helliwell RA, Katsufrakis K  P.  1981.  A VLF transmitter on the Space Shuttle. Advances in Space Research. 1:235-239.

Park, CG, Helliwell RA.  1981.  Power line radiation in the magnetosphere. Advances in Space Research. 1:423-437.

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.

Park, CG, Helliwell RA.  1981.  Power line radiation in the magnetosphere. Advances in Space Research. 1:423-437.

Burtis, W  J, Helliwell RA.  1976.  Magnetospheric chorus - Occurrence patterns and normalized frequency. Planetary and Space Science. 24:1007-1024.