Stieltjes Analyse Colloquium
Delft; 1995
Ph. Clément, H. van Duijn, B. de Pagter
Akademie Colloquium `Dynamical Systems and their Applications in Science'
Amsterdam; 26 - 28 January 1995
S.J. van Strien, S.M. Verduyn Lunel
Landelijke Operatorentheorie dagen
Groningen; 2 February 1995
Utrecht; 1 December 1995
Delft; 13 September 1996
Stieltjes Analyse Colloquium
Amsterdam; 1996
T.H. Koornwinder, S.M. Verduyn Lunel, J.J.O.O. Wiegerinck