1. Assistant Professor, Department of Private and Notarial Law, Faculty of Law, University of Groningen, Groningen, the Netherlands, irene.Visser@rug.nl
2. students of the Research Master at the Faculty of Law, University of Groningen, Groningen, the Netherlands, j.a.breedeveld@student.rugl.nl; y.hasnaoui@student.rug.nl