| Institution: | (1) The Astronomical Institute, Utrecht;(2) University of Southampton, Southampton;(3) The Astronomical Institute, Utrecht;(4) European Space Research and Technology Centre, Noordwijk, the Netherlands;(5) Institute of Astronomy, Cambridge, UK;(6) Natuurkundig Laboratorium, Universiteit van Amsterdam, The Netherlands;(7) Tel-Aviv University, Tel-Aviv, Israel;(8) Lick Observatory, University of California, Santa Cruz, California;(9) Astronomical Observatory, Ond ejov, Czechoslovakia;(10) Planetary Science Institute, 05719 Tucson, Arizona;(11) Institut d'Astrophysique, Cointe-Ougrée, Belgium;(12) Potchefstroom University, Potchefstroom, Netherlands |
