Substorm topology in the ionosphere and magnetosphere during a flux rope event in the magnetotail Amm, O. ; Nakamura, R. ; Frey, H. U. ; Ogawa, Y. ; Kubyshkina, M. ; Balogh, A. ; Rème, H. Abstract Publication: Cluster and Double Star Symposium Pub Date: January 2006 Bibcode: 2006ESASP.598E..41A