The Astronomical Institute at Utrecht, The Netherlands
J. van Diggelen
Tel-Aviv University, Israel
Yuval Ne'eman
Institute for Theoretical Physics, University of Utrecht, The Netherlands
B. R. A. Nyboer
Astronomical Observatory, Ondřjov, Czechoslovakia
J. Kleczek
Institute for History of Science, Polish Academy of Sciences, Warsaw
Jerzy Dobrzycki
Max-Planck-Institut für Aeronomie, Lindau
G. Hartmann
Air Force Geophysics Laboratory, Mass., USA
W. Swider
International Institute for Aerial Survey and Earth Sciences, Enschede, The Netherlands
S. A. Hempenius
The Astronomical Institute at Utrecht, The Netherlands
C. de Jager
Institute for Theoretical Physics, University of Utrecht, The Netherlands
G. 't Hooft
Physics Laboratory, University of Utrecht, The Netherlands
S. Radelaar
Royal Netherlands Meteorological Institute, The Netherlands
J. A. Wisse
Astronomical Institute, University of Amsterdam, The Netherlands
T. de Jong
The Astronomical Institute at Utrecht, The Netherlands
J. Houtgast
Physical Laboratory, University of Utrecht, The Netherlands
J. Bezemer