On the origin of the energetic ion events measured upstream of the Earth's bow shock by STEREO, Cluster, and Geotail

1. Kronberg, E.A.
2. Bučík, R.
3. Haaland, S.
4. Klecker, B.
5. Keika, K.
6. Desai, M.I.
7. Daly, P.W.
8. Yamauchi, M.
9. Gómez-Herrero, R.
10. Lui, A.T.Y.