Guests and former members
Dr van den Essen, A.R.P. (Arno)
Professor emeritus
Drs Gielen, W.J.J. (Wim)
Dr Heckman, G. (Gert)
Professor emeritus
Prof Keune, F.J. (Frans)
Professor emeritus
Prof Maassen, J.D.M. (Hans)
Professor emeritus
Prof van Rooij, A.C.M. (Arnoud)
Professor emeritus
Dr Veldman, W.H.M. (Wim)