1. National Museum of Natural History (Mnhn); Walferdange Grand Duchy of Luxembourg
2. European Centre for Geodynamics and Seismology; Walferdange Grand Duchy of Luxembourg
3. Public Research Centre - Gabriel Lippmann; Department of Environment and Agro-Biotechnologies; Belvaux Grand Duchy of Luxembourg
4. Faculty VI Regional and Environmental Sciences; University of Trier; Trier Germany