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Book Chapter
Sonwalkar, VS.  1990.  Lightning, whistlers, and hiss - A possible relationship. Physics of Space Plasmas (1989). :477-482.
Conference Paper
Inan, US, Bell TF, Helliwell RA.  1977.  Coherent wave induced particle precipitation into the upper atmosphere. NATO ASIC Proc. 35: Dynamical and Chemical Coupling Between the Neutral and Ionized Atmosphere. :169-174.
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.  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.  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.  1983.  VLF wave injections from the ground. ESA Special Publication. 195:3-9.
Conference Proceedings
[Anonymous].  1978.  Modeling of VLF ducts in the plasmasphere. Operational Modelling of the Aerospace Propagation Environment, Volume 1. 1
Helliwell, RA.  1977.  Modification of the propagation characteristics of the ionosphere (and the magnetosphere) by injection into the magnetosphere of whistler-mode waves. AGARD Artificial Modification of Propagation Media 8 p (SEE N77-19530 10-42).
[Anonymous].  1987.  Wave-induced particle precipitation from the magnetosphere and the associated ionospheric perturbations. AGARD, The Aerospace Environment at High Altitudes and its Implications for Spacecraft Charging and Communications 10 p (SEE N87-26937 21-18).
Journal Article
Park, CG, Meng C-I.  1976.  Aftereffects of isolated magnetospheric substorm activity on the mid-latitude ionosphere - Localized depressions in F layer electron densities. Journal of Geophysical Research. 81:4571-4578.
Helliwell, RA, Inan US, Katsufrakis J  P, Carpenter DL.  1986.  Beat excitation of whistler mode sidebands using the Siple VLF transmitter. Journal of Geophysical Research. 91:143-153.
Gail, W  B, Inan US, Helliwell RA, Carpenter DL, Krishnaswamy S.  1990.  Characteristics of wave-particle interactions during sudden commencements. I - Ground-based observations. Journal of Geophysical Research. 95:119-137.
Helliwell, RA.  1975.  Coherent VLF waves in the magnetosphere. Royal Society of London Philosophical Transactions Series A. 280:137-149.
Rosenberg, TJ, Singh S, Wu C  S, LaBelle J, Treumann R  A, Inan US, Lanzerotti L  J.  1995.  Coincident bursts of auroral kilometric radiation and VLF emissions associted with a type 3 solar radio noise event. Journal of Geophysical Research. 100:281-288.
Inan, US, Bell TF, Anderson R  R.  1977.  Cold plasma diagnostics using satellite measurements of VLF signals from ground transmitters. Journal of Geophysical Research. 82:1167-1176.
Webb, D  C, Lanzerotti L  J, Park CG.  1977.  A comparison of ULF and VLF measurements of magnetospheric cold plasma densities. Journal of Geophysical Research. 82:5063-5072.
Helliwell, RA.  1983.  Controlled stimulation of VLF emissions from Siple Station, Antarctica. Radio Science. 18:801-814.
Paschal, EW, Lanzerotti L  J, Maclennan C  G.  1990.  Correlation of whistler mode phase delay with transient hydromagnetic waves. Journal of Geophysical Research. 95:15059-15071.
Carpenter, DL, Seely N  T.  1976.  Cross-L plasma drifts in the outer plasmasphere - Quiet time patterns and some substorm effects. Journal of Geophysical Research. 81:2728-2736.
Sa, L  A  D.  1989.  A cyclotron resonance mechanism for very-low-frequency whistler-mode sideband wave radiation. I - Introduction and description of external resonances. II - Description of internal ('trapped') resonances. III - Effect of the inhomogeneity on sideband reson. Journal of Applied Physics. 66:3482-3514.
Rastani, K, Inan US, Helliwell RA.  1985.  DE 1 observations of Siple transmitter signals and associated sidebands. Journal of Geophysical Research. 90:4128-4140.
Sonwalkar, VS, Inan US, Bell TF, Helliwell RA, Molchanov O  A, Green JL.  1994.  DE 1 VLF observations during Activny wave injection experiments. Journal of Geophysical Research. 99:6173-6189.
Inan, US, Helliwell RA.  1982.  DE-1 observations of VLF transmitter signals and wave-particle interactions in the magnetosphere. Geophysical Research Letters. 9:917-920.
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.
Carpenter, DL, Miller T  R.  1976.  Ducted magnetospheric propagation of signals from the Siple, Antarctica, VLF transmitter. Journal of Geophysical Research. 81:2692-2700.