J.J.M. Franse
Flanders Marine Institute
A. de Visser
University of Amsterdam
J. A. Mydosh
Leiden University
F.R. de Boer
Charles University
G. J. Nieuwenhuys
Paul Scherrer Institute
D. van der Marel
University of Geneva
J. A. Mydosh
Leiden University
V. Sechovský
Charles University
S.A.M. Mentink
Philips (Finland)
N. E. Sluchanko
Prokhorov General Physics Institute
University of Amsterdam
Centre National de la Recherche Scientifique
Leiden University
University of Groningen
Rijksmuseum
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
Czech Academy of Sciences, Institute of Physics
Charles University
Czech Academy of Sciences
Delft University of Technology