Friedel, R. H. W. MPI for Aeronomy, Max Planck Institute for Solar System Research, Max Planck Society; MPI for Aeronomy, Max Planck Institute for Solar System Research, Max Planck Society;
Yeoman, T. K., Lühr, H., Friedel, R. H. W., Coles, S., Grandé, M., Perry, C. H., et al. (1994). CRRES/ground-based multi-instrument observations of a substorm expansion phase onset. In J. R. Kan, J. D. Craven, & S.-I. Akasofu (Eds.), Substorms 2, Proc. 2. Int. Conf. on Substorms, Fairbanks (pp. 627-633). Fairbanks: Univ. of Alaska.