1. AGEs; Département de Géologie; Université de Liège; Sart Tilman Liège Belgium
2. Department of Earth Sciences; Cluster Geochemistry & Geology; Faculty of Earth and Life Sciences; VU University Amsterdam; The Netherlands
3. Max Planck Institute of Chemistry; Mainz; Germany
4. Department of Earth Sciences; University of Minnesota; Minneapolis MN USA
5. Assoc. Res. Royal Belgian Institute of Natural Sciences and VU Brussel; currently BELSPO; Belgium