1. Tail of the magnetosphere;Axford;J. geophys. Res.,1965
2. Transport characteristics of low energy solar cosmic rays;Balogh,1971
3. Low energy proton measurements in interplanetary space on board the HEOS 1 satellite;Balogh,1970
4. Geometry of the geomagnetic tail;Behannon;J. geophys. Res.,1970
5. Cooper, C. and Haskell, G. (1972). Private communication.