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2. In situ gas and ion measurements at comet Halley;Krarnkowsky;Nature,1986
3. Astrophysical Formulae
4. Sanderson , T. R. K.-P. Wenzel P. W. Daly S.W.H. Cowley R. J. Hynds I. G. Richardson E. J. Smith S. J. Bame R. D. Zwickl Observations of heavy energetic ions far upstream from comet Halley Proc. of the 20th ESLAB Symposium on the Exploration of Halley's Comet. ESA Publication SP-250, 1 Paris 1986
5. ICE plasma wave measurements in the ion pick-up region of comet Halley;Scarf;Geophys. Res. Let.,1986