| Institution: | (1) Main Astronomical Observatory, Academy of Sciences of the, Ukrainian SSR, Kiev;(2) Astronomical Institute at Ond ejov, Kiev;(3) Ruhr University, Bochum, Kiev;(4) Laboratory for Space research, Utrecht;(5) Charles University, Prague;(6) Tel Aviv University, Kiev;(7) University of Bochum, Bochum, Kiev;(8) Royal Greenwish Observatory, Kiev;(9) Ondrejov Observatory, Ondrejov, Kiev;(10) Wien, Austria;(11) Max-Planck-Institut für Astrophysik, Garching;(12) Astronomical Institute, Ondrejov, Kiev;(13) Houten, The Netherlands;(14) Radio Observatory, Dwingeloo;(15) ESO Space Telescope, European Coordination Facility, ESO, Garching;(16) Delft University of Technology, The Netherlands;(17) Fokker Space Division, Amsterdam;(18) Laboratory for Space Research, Utrecht;(19) North Carolina State University, Raleigh;(20) Lebedev Physical Institute, Moscow;(21) Astronomical Observatory, Utrecht;(22) Max Planck Institut für Extraterrestrische Physik, München |
