Cusp/cleft auroral activity in relation to solar wind dynamic pressure IMF BZ and BY Sandholt, P. E. ; Farrugia, C. J. ; Burlaga, L. F. ; Holtet, J. A. ; Moen, J. ; Lybekk, B. ; Jacobsen, B. ; Opsvik, D. ; Egeland, A. ; Lepping, R. ; Lazarus, A. J. ; Hansen, T. ; Brekke, A. ; Friis-Christensen, E. Abstract Publication: Physical Signatures of Magnetospheric Boundary Layer Processes Pub Date: 1994 Bibcode: 1994psmb.conf..173S