| Institution: | (1) Estec, Noordwijk;(2) Observatoire de Paris, Meudon;(3) Astronomical Institute, Bratislava;(4) Utrecht State University Faculty of Law, Utrecht;(5) Harvard College Obs., Cambridge, Massachusetts;(6) Royal Netherlands Meteorological Institute De Bilt, The Netherlands;(7) Inst. of Applied Mathematics, Moscow;(8) Smithsonian Institution, Rockville;(9) Department of Physics, University of Sheffield, Sheffield;(10) Institute for Space Aeronomy, Brussels;(11) Astronomical Institute, Ond ejov;(12) Max-Planck Institute for Astronomy, Heidelberg;(13) Astronomical Institute at Utrecht, Utrecht;(14) Astrophysical Observatory, Firenze;(15) Astronomical Institute, Bochum;(16) Institute for Theoretical Astronomy USSR Academy of Sciences, USSR;(17) Max-Planck-Institut für Radioastronomie, Heidelberg;(18) Czechoslovak Academy of Sciences Astronomical Institute, Prague;(19) Astronomy Centre, Univ. of Sussex, Germany;(20) Institute for Space Aeronomy, Brussels;(21) Max-Planck-Institute for Aeronomy, Lindau;(22) Scientific Research Foundation, Jerusalem;(23) University of Innsbruck, Innsbruck;(24) Lab. for Solid State Physics, Zürich;(25) Astrophysical Institute, University of Brussels, Brussels;(26) Astronomical Institute, Ondejov, Czechoslovakia;(27) Royal Greenwich Observatory, Hailsham;(28) Astronomical Observatory Uppsala, Sweden |
