Department of GeoInformatics, TNO Built Environment and Geosciences, Geological Survey of the Netherlands, Princetonlaan 6 / PO box, NL-3508 AL Utrecht, The Netherlands
GIGC-IPE, Université Libre de Bruxelles (CP 160/02), 50 av. Roosevelt, B-1050 Brussels, Belgium (Aspirant du F.R.S.-FNRS); UMR-CNRS 6112, LPGN, Université de Nantes, 2 rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France