1. On what ionospheric workers should know about the plasmapause-plasmasphere;Carpenter;Rev. Geophys. Space Phys.,1973
2. Some early results from the ATS-6 radio beacon experiment;Davies;Radio Sci.,1975
3. Measurements of the columnar electron contents of the ionosphere and plasmasphere;Davies;J. Geophys. Res.,1976
4. Fritz , R. B. ATS-6 radio beacon electron content measurements at Boulder July 1974-May 1975 Boulder, Colo. 1976
5. Hargreaves , J. K. ATS-F: Observational opportunities Proceedings of the Symposium on the Future Application of Satellite Beacon Experiments (June 1970) 16-1 16-9 Lindau, West Germany. 1970