Institution: | (1) Institute of Theoretical Astronomy, Cambridge, UK;(2) Centre Universitaire, Mons, Belgium;(3) Laboratory of Engineering Mechanics, Delft University of Technology, The Netherlands;(4) The Astronomical Institute, Utrecht, The Netherlands;(5) University of California, Los Alamos, N.M., USA;(6) Royal Netherlands Meteorological Institute, De Bilt, The Netherlands;(7) University of California, San Diego, La Jolla, Calif., USA |