1. Alfvén, H. A., , C-G., Falthammar, , Cosmicat Electrodynamics, Clarendon Press, Oxford, 1963,
2. Wave-energetic particle associations in the magnetosphere;Anderson,1968
3. Kinetic instability of the earth's outer radiation belts;Andronov;Geomagnet. Aeron.,1964
4. Observations of protons in the magnetosphere and magnetotail with Explorer 33;Armstrong;J. Geophys. Res.,1968
5. An approximate flow equation for geomagnetic flux tubes and its applications to polar substorms;Atkinson;J. Geophys. Res.,1967