1. Institute of Geosciences University of Bonn Bonn Germany
2. Department of Geology University of Innsbruck Innsbruck Austria
3. Earth Science Institute Slovak Academy of Sciences Bratislava Slovak Republic
4. Faculty of Geology, Geophysics and Environmental Protection AGH University of Science and Technology Kraków Poland
5. Instituto Andaluz de Ciencias de la Tierra CSIC & Universidad de Granada Granada Armilla Spain
6. Institute of Geology and Mineralogy University of Cologne Cologne Germany