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Seminar at Max Planck Institute for Aeronomy, Katlenburg-Lindau, Germany, November 1992
Seminar at Max Planck Institute for Extra-Terrestrial Physics, Berlin, Germany, November 1992
Seminar at University of Potchefstroom, South Africa, December 1992
Seminar at University of Natal, Durban, South Afrcia, December 1992
Seminar at Royal Marsden Hospital, London, October 1994
London Space Plasma Seminar, Queen Mary and Westfield College, London, December 1995
European Geophysical Society meeting, The Hague, Holland, April 1996
Institute of Physics meeting, Lancaster, November 1997
Seminar at Kings College London, November 1997
Royal Astronomical Society meeting, London, March 1998
Western Pacific AGU meeting, Taipei, July 1998
European Geophysical Society meeting, The Hague, Holland, April 1999
Regularly give talks at Astronomical Society meetings and schools