University of Minnesota at Minneapolis, USA
R. M. Humphreys
Department of Pure and Applied Physics, The Queen's University of Belfast, Northern Ireland
S. Kemp
Astronomical Institute, University of Amsterdam, The Netherlands
G. Savonije
Space Research Organization Netherlands at Utrecht, The Netherlands
K. A. van der Hucht
Kapteyn Astronomical Institute, at Groningen, The Netherlands
P. C. van der Kruit
Leiden Observatory at Leiden, The Netherlands
G. Miley & Peter Katgert
Astronomical Institute of the Czech Academy, of Sciences, Observatory Ondřejov, Czech Republic
V. Bumba
Astronomical Institute at Utrecht, The Netherlands
J. van Nieuwkoop, R. J. Rutten, C. Zwaan, A. Achterberg & H. van der Laan
Instituut voor Stereenkunde, Katholieke Universiteit Leuven, Heverlee, Belgium
T. van Hoolst
Los Alamos National Laboratory at Los Alamos, New Mexico, USA
A. Cox
Astronomical Institute, Ondřejov, Czech Republic
J. Kleczek
Space Research Organization of the Netherlands, Utrecht, The Netherlands
Cornelis de Jager
Astronomical Institute of the Wrocław University at Wrocław, Poland
M. Jerzykiewicz
FOM-Institute for Plasma Physics at Nieuwegein, The Netherlands
S. Poedts
Laboratory for Plasma Astrophysics, Toyama University, Toyama, Japan
Jun -Ichi Sakai
Collège de France at Paris, France
J. -C. Pecker
University of Texas at Dallas, Texas
W. Heikkila
Space Research Organisation, of the Netherlands (SRON), Utrecht/Groningen, The Netherlands
T. de Jong & P. Hoyng
School of Mathematics and Statistics, University of Sydney, Australia
P. R. Wilson
Genève Observatory, Sauverny/Genève, Switzerland
E. A. Müller
Leiden Observatory, The Netherlands
V. Icke
Department of Physics and Astronomy, Indiana University South Bend, South Bend, USA
S. N. Shore
Astronomical Institute of the University of Padova, Italy
F. Lucchin
Netherlands Foundation for Research in Astronomy at Dwingeloo, The Netherlands
H. Butcher
Tel Aviv University at Tel Aviv, Israel
Y. Ne'eman
Paris Observatory at Meudon, France
J. Heidmann
National Optical Astronomy Observatories at Tucson, USA
M. J. S. Belton
Kapteyn Astronomical Institute at Groningen, The Netherlands
Th. de Graauw
Astronomical Institute of the University of Amsterdam and SRON Laboratory for Space Research at Groningen, The Netherlands
L. B. F. M. Waters
Astronomy Department of the University of Florence at Firenze, Italy
F. Pacini
Swedish Institute of Physics at Kiruna, Sweden
B. Hultqvist
Geophysical Institute of the University of Alaska, Fairbanks, USA
S. -I. Akasofu
Institut d'Astrophysique Spatiale at Orsay, France
J. -C. Vial
Paris Observatory at Meudon, France
E. Schatzman
NASA Goddard Space Flight Center at Greenbelt, USA
K. D. Cole
Astrophysical Institute of the Free University at Brussels, Belgium
D. Vanbeveren
Physics Department of Imperial College at London, UK
D. Southwood
Astronomical Institute ‘Anton Pannekoek’ and Center for High Energy Astrophysics, University of Amsterdam at Amsterdam, The Netherlands
M. van der Klis