The Netherlands

University of Groningen
Utrecht University
Radboud University Nijmegen
VU University (Amsterdam)
University of Amsterdam
Wageningen University & Research
Leiden University
Erasmus University Rotterdam
Eindhoven University of Technology
Maastricht University

Belgium

University of Antwerp
Ghent University
Vrije Universiteit Brussel

Research Institutes

International Institute of Social History (Amsterdam)
Fryske Akademy (Leeuwarden)