| Institution: | (1) University of California, Los Angeles;(2) The Astronomical Institute, Utrecht;(3) Astronomical Institute of the Czechoslovak Academy of Sciences, Ondr ;(4) Tel-Aviv University, Ramat-Aviv, Israel;(5) Royal Netherlands Meteorological Institute, De Bilt, The Netherlands;(6) Astronomical Institute, University of Utrecht/Holland, Utrecht, The Netherlands;(7) Coll`ge de France, Paris;(8) Sterrewacht, Leiden;(9) Astronomical Institute, CSAV, Praha, Czechoslovakia;(10) Dept. Natuurkunde, Univ. of Antwerpen, Belgium;(11) Huygens Laboratory, Leiden, The Netherlands;(12) Institut d' Astrophysique, Universit´ de Li`ge, B-4200 Cointe-Ougr´, Belgium;(13) The Astronomical Institute, Ondejov Czechoslovak Academy of Sciences, Czechoslovakia;(14) Observatoire Royal de Belgique, 1180 Bruxelles, Belgique;(15) Space Science Department of ESA, USA;(16) Space Research Dept., University of Groningen, Groningen, Germany;(17) Astronomical Observatory, Ondejov, Czechoslovakia;(18) ESO Scientific Group c/o CERN Geneva, Geneva, Switzerland |
