Dirk Hanschel (IMAGE) Martin-Luther-Universität Halle-Wittenberg Caption Professor Dirk Hanschel Credit MLU / Maike Glöckner Usage Restrictions Use for covering the release, with appropriate credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.