Prof. Dr. Monika Hartmann (IMAGE) University of Bonn Caption Leitung Marktforschung der Agrar- und Ernährungswirtschaft an der Universität Bonn. Credit Foto: Meike Böschemeyer/University of Bonn Usage Restrictions This image may be used together with the press release. License Original 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.