Schwenn, R. Department Sun and Heliosphere, Max Planck Institute for Solar System Research, Max Planck Society; MPI for Aeronomy, Max Planck Institute for Solar System Research, Max Planck Society;
Michels, D. J., Howard, R. A., Koomen, M. J., Plunkett, S., Brueckner, G. E., Lamy, P., et al. (1997). Visibility of earth-directed coronal mass ejections. In A. Wilson (Ed.), Proc. Fifth SOHO Workshop ``The Corona and Solar Wind Near Minimum Activity'', Oslo (pp. 567-570). Noordwijk: ESA Publ. Div.