The limb flare of 1980 April 30 as seen by the hard X-ray imaging spectrometer von van Beek, H. F., de Jager, C., Schadee, A., Svestka, Z., Boelee, A., Duijveman, A., Galama, M., Hoekstra, R., Hoyng, P., Fryer, R.

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A new technique for measuring electron temperature in the ionosphere von Wilson, J.W.G., Garside, G.

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Hard X-ray imaging of two flares in active region 2372 von Hoyng, P., Duijveman, A., Boelee, A., de Jager, C., Galama, M., Hoekstra, R., Imhof, J., Lafleur, H., Machado, M. E., Fryer, R.

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A measurement of ionospheric electric fields at high latitude von Wilson, J.W.G., Hopkins, H.D., Van Zyl, C.P.

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Anomalous Features of the Electron Density in the Topside Ionosphere von Sayers, J., Wilson, J. W. G., Loftus, Brigid

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Solar maximum mission experiment: Early results of the hard X-ray imaging experiment von Boelee, A., de Jager, C., Duijveman, A., Galama, M., Hoekstra, R., Hoyng, P., Imhof, J.P., Lafleur, H., Maseland, H.V.A.M., Mels, W.A., Schadee, A., Schrijver, J., Svestka, Z., van Beek, H.F., van Rens, P., van der Laan, J.J.M., van Tend, W., Werkhoven, F., Wiersma, G., Zandee, W., Simnett, G.M., Charlton, C.P., Fryer, R., Willmore, A.P., Wilson, J.W.G., Machado, M.E.

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The BK24 Ignitron as a High Current Switch von KERR, L. W., MOCONKEY, J. W., WILSON, J. W. G.

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