H. Broer , Rijksuniversiteit Groningen , The Netherlands.
H. Broer , Rijksuniversiteit Groningen , The Netherlands.
O. Diekmann , Utrecht University, The Netherlands.
A. Doelman , Center for Mathematics and Computer Science (CWI), UvA, The Netherlands.
S. van Gils, University of Twente, The Netherlands.
Van Groessen, University of Twente, The Netherlands.
A.J. Homburg , University of Amsterdam , The Netherlands.
J. Hulsof, Amsterdam Free University, The Netherlands.
Yu. A. Kuznetsov , Utrecht University, The Netherlands.
M. Martens, Rijksuniversiteit Groningen , The Netherlands.
M. Peletier,Technische Universiteit Eindhoven , The Netherlands.