Patrick Häuser (University of Duisburg-Essen / DE), Christian Blumberg (University of Duisburg-Essen / DE), Dr. Werner Prost (University of Duisburg-Essen / DE), Mathias Bartsch (University of Duisburg-Essen / DE), Professor Axel Lorke (University of Duisburg-Essen / DE), Professor Nils Weimann (University of Duisburg-Essen / DE)