M. André, Dispersion surfaces, Plasma Phys, pp.1-19, 1985.

M. Backrud, Identification of broad-band waves above the auroral acceleration region: Cluster observations, Annales Geophysicae, vol.22, issue.12, pp.4203-4216, 2004.
DOI : 10.5194/angeo-22-4203-2004
URL : https://hal.archives-ouvertes.fr/hal-00153171

M. Backrud, Cluster observations and theoretical explanations of broadband waves in the auroral region, 2005.

J. Bonnell, P. Kintner, J. Wahlund, K. Lynch, and R. Arnoldy, Interferometric determination of broadband ELF wave phase velocity within a region of transverse auroral ion acceleration, Geophysical Research Letters, vol.88, issue.23, pp.3297-3300, 1996.
DOI : 10.1029/JA088iA01p00341

P. M. Décréau, WHISPER, a resonance sounder and wave analyzer: Performance and perspectives for the Cluster mission, Space Science Reviews, vol.79, issue.1/2, pp.157-193, 1997.
DOI : 10.1023/A:1004931326404

C. P. Escoubet, C. T. Russel, and R. Schmidt, The Cluster and Phoenix Missions, Space Sci. Rev, vol.79, pp.1-658, 1997.
DOI : 10.1007/978-94-011-5666-0

D. A. Gurnett and L. A. Frank, A region of intense plasma wave turbulence on auroral field lines, Journal of Geophysical Research, vol.79, issue.7, pp.1031-1050, 1977.
DOI : 10.1029/JA079i001p00105

G. Gustafsson, The Electric Field and Wave Experiment for the Cluster Mission, Space Sci. Rev, vol.79, pp.137-156, 1997.
DOI : 10.1007/978-94-011-5666-0_6

C. Johnstone, Peace: A Plasma Electron and Current Experiment, Space Sci. Rev, vol.79, pp.351-398, 1997.
DOI : 10.1007/978-94-011-5666-0_13

P. M. Kintner, J. Franz, P. Schuck, and E. Klatt, Interferometric coherency determination of wavelength or what are broadband ELF waves?, Journal of Geophysical Research: Space Physics, vol.24, issue.16, pp.237-21250, 2000.
DOI : 10.1029/97GL01102

J. L. Pincon, P. M. Kintner, P. W. Schuck, and C. E. Seyler, Observations and analysis of lower hybrid solitary structures as rotating eigenmodes, J. Geophys. Res, vol.102, issue.17, pp.283-17296, 1997.

A. Vaivads, M. André, S. C. Buchert, J. Wahlund, A. N. Fazakerley et al., Cluster observations of lower hybrid turbulence within thin layers at the magnetopause, Geophysical Research Letters, vol.96, issue.A9, pp.10-1029, 2004.
DOI : 10.1029/2003GL018142
URL : https://hal.archives-ouvertes.fr/hal-00153105

J. Wahlund, Broadband ELF plasma emission during auroral energization: 1. Slow ion acoustic waves, Journal of Geophysical Research: Space Physics, vol.17, issue.A3, pp.4343-4376, 1998.
DOI : 10.1029/94GL01425

À. M. André, M. Backrud, and A. Vaivads, Swedish Institute of Space Physics, P. O. Box 537, SE-751 21 Uppsala, Sweden. (ma@irfu.se) A. Fazakerley