Friedel, R. H. W., Korth, A., Reeves, G. D., & Belian, R. D. (1994). Origin of energetic particle injections at substorm onset as measured by the CRRES spacecraft between 4 and 7 Re and Los Alamos geostationary satellites. In J. R., Kan, J. D., Craven, & S.-I., Akasofu (Eds.), Substorms 2, Proc. 2. Int. Conf. on Substorms, Fairbanks (pp. 571-576). Fairbanks: Univ. of Alaska.