Observatory Midi Pyrénées at Toulouse, Toulouse, France
G. Vauclair
Astronomical Institute at Utrecht, Utrecht, The Netherland
A. Achterberg, H. van der Laan & C. J. Schrijver
Inter-University Centre for Astronomy and Astrophysics at Pune, Pune, India
Jayant Narlikar
Sterrewacht Leiden, Leiden, The Netherland
J. Lub
Laboratory of Plasma Astrophysics and Fusion Science, Toyama University at Toyama, Toyama
J. I. Sakai
SRON Laboratory for Space Research, Utrecht
Cornelis de Jager
Université Paris VII and Observatoire de Paris at Meudon, Meudon
P. Léna
Department of Physics of the Free University at Brussels, Brussels, Belgium
D. Vanbeveren
Institut d'Astrophysique de Paris, Paris, France
J. Audouze
University of Amsterdam at Amsterdam, Amsterdam, The Netherland
E. P. J. van den Heuvel