Prof. Dr. H. Heerklotz and L. Vormittag, University of Freiburg/Germany
Dr. Meike van der Zande and Dr. Josbert M. Metselaar
Prof. Dr. S. Klein, University of Greifswald/Germany
Prof. Dr. C. Valenta, University of Vienna/Austria
Prof. Dr. A. Blume, University of Halle-Wittenberg/Germany