226. Park, C. G., and R. A. Helliwell, Power line radiation, Science, 207, 715, 1980.
227. Chang, D. C. D., and R. A. Helliwell, VLF Pulse propagation in the magnetosphere, IEEE Tran Ant. and Prop., AP-28, (2), 170-176, 1990.
228. Luette, J. P., C. G. Park, and R. A. Helliwell, Comment on `On possible causes of apparent longitudinal variations OGO 3 observations of VLF chorus' by C. T. Russell, J. Geophys. Res., 85, (A3), 1343-1344, 1980.
229. Mende, S. B., R. L. Arnoldy, J. J. Cahill, Jr., J. H. Doolittle, W. C. Armstrong, and A. C. Fraser-Smith, Correlation between (lambda)4278- optical emissions and a Pc 1 pearl event observed at Siple Station, Antarctica, J. Geophys. Res., 85, (A3), 1194-1202, 1980.
230. Chang, D. C. D., R. A. Helliwell, and T. F. Bell, Side-band mutual interactions in the magnetosphere, J. Geophys. Res., 85, (A4), 1703-1712, 1980.
231. Fraser-Smith, A. C., and R. A. Helliwell, ELF sferic occurrences in the Antarctic during a solar proton event: Case study of occurrences at Byrd Station during the event of June 9, 1968, J. Geophys. Res., 85,(A5), 2296-2306, 1980.
232. Helliwell, R. A., S. B. Mende, J. H. Doolittle, W. C. Armstrong, and D. L. Carpenter, Correlations between (lambda)4278- optical emissions and VLF wave events observed at L~4 in the Antarctic, J. Geophys. Res., 85, (A7), 3376-3386, 1980.
233. Helliwell, R. A., D. L. Carpenter, and T. R. Miller, Power threshold for growth of coherent VLF signals in the magnetosphere, J. Geophys. Res., 85, (A7), 3360-3366, 1980a.
234. Carpenter, D. L., Fast fluctuations in the arrival bearing of magnetoshperically propagating signals from Siple, Antarctica, VLF transmitter, J. Geophys. Res., 85(A8), 4157-4166, 1980.
235. Gonzales, C. A., M. C. Kelley, D. L. Carpenter, T. R. Miller, and R. H. Wand, Simultaneous measurements of ionospheric and magnetospheric electric fields in the outer plasmasphere, Geophys. Res., Lett., 7, (7), 517-520, 1980.
236. Bell., T. F., U. S. Inan, and R. A. Helliwell, ISEE-1 satellite observations of VLF signals and associated triggered emissions from the Siple Station transmitter, IMS in Antarctica (Collected Antarctic Research Papers Presented to the First Int'l. Symposium on IMS in Melbourne, Nov 27-Dec 1, 1979), (16), 128-144, Tokyo: National Institute for Polar Research, Sept. 1980.
237. Fraser-Smith, A. C., and R. A. Helliwell, Stimulation of Pc 1 geomagnetic pulsations by naturally occurring repetitive VLF activity, Geophys. Res., Lett., 7,(10), 851-853, 1980.
237a. Carpenter, D. L., and S. Tkalcevic, VLF studies at Palmer Station, Antarctica, Ant. J. XV,(5), 196, 1980.
237b. Carpenter, D. L., T. R. Miller, T. F. Bell, R. Anderson, and D. Gurnett, Comparison of ground-based and satellite measurements of plasma densities in space, Ant. J., XV, (5), 197, 1980.
237c. Carpenter, D. L., T. R. Miller, C. A. Gonzales, M. C. Kelley, and R. H. Wand, First simultaneous observations of magnetospheric plasma drifts by the whistler and incoherent scatter radar methods, Ant. J., XV, (5), 206, 1980.
237d. Doolittle, J. H., Photometrically detected precipitation bursts at the conjugate point of Siple Station, Ant. J., XV, (5), 207, 1980.
237e. Siren, J. C., T. J. Rosenberg, D. Detrick, and D. L. Carpenter, Characteristics of the common origin of electron microbursts and VLF chorus, Ant. J. XV(5), 210, 1980.
237f. Katsufrakis, J. P., R. A. Helliwell, and G. James, Observations of Siple transmitter signals on the ISIS satellites, Ant. J. XV,(5), 212-213, 1980.
237g. Bell, T. F., U. S. Inan, I. Kimura, and H. Matsumotot, High altitude satellite observations of signals from the Siple transmitter, Ant. J. XV, (5), 214-215, 1980.
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