1. Low level VLF and LF radio emissions observed at Earth and Jupiter;Barbosa;Rev. Geophys. Space Phys.,1982
2. GEOS-1 observations of electrostatic waves, and their relationship with plasma parameters;Christiansen;Space Sci. Rev.,1978
3. Observations of continuum radiation in the earth's magnetosphere, presented at the XVII IUGG/IAGA General Assembly;Christiansen;Canberra.,1979
4. Terrestrial continuum study during the IMS;Christiansen;Proceedings of an international symposium on “Achivements of the International Magneto-spheric Study (IMS)”.,1984