| Affiliation: | (1) Mathematical Institute of the University at Groningen, Groningen, The Netherlands;(2) Astronomical Institute at Utrecht, Utrecht, The Netherlands;(3) Huygens Laboratory, Leiden;(4) Astronomical Institute Ondr!["ecaron"]("/content/n651528714241095/xlarge283.gif") jov, Czechoslovakia;(5) Institute of Theoretical Physics, Utrecht;(6) University of Oxford, UK;(7) Kanazawa Institute of Technology, Ishikawa;(8) Technisch Physische Dienst, Institute of Applied Physics, Delft;(9) Max-Planck-Institut für Aeronomie, Katlenburg-Lindau, Germany;(10) Lab. for Aero- and Hydrodynamics, Delft;(11) University College, London;(12) Technological University, Delft, The Netherlands;(13) Laboratory Astrophysics Group, Leiden |
