Veldkamp, T. I. E. (VU Univ. Amsterdam, Netherlands)
Eisner, S. (Kassel Univ. Germany)
Wada, Y. (NASA Goddard Inst. for Space Studies New York, NY, United States)
Aerts, J. C. J. H. (VU Univ. Amsterdam, Netherlands)
Ward, P. J. (VU Univ. Amsterdam, Netherlands)