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2. The space radiation environment at 840 km;Mullen,1989
3. AP-8 Trapped Proton Environment for Solar Maximum and Solar Minimum;Sawyer,1976
4. Charged particle radiation exposure of Geocentric Satellites;Stassinopoulous,1989
5. The Use of the Inner Zone Electron Model AE-5 and Associated Computer Programs;Teague;NSSDC/WDC-A-R and S 72-11,1972