Welcome to the Webpage of the Research Group Databases and Electronic Commerce Quick Links Current Courses Upcoming Courses Open Bachelor and Master Topics Current Research People Contact Prof. Dr. Stefan Böttcher Databases and Electronic Commerce Write email +49 5251 60-6662 More about the person Sekretariat Petra Schaefermeyer Algorithmen und Komplexität / Heinz Nixdorf Institut (bis 2023) working group "algorithms and complexity" Write email +49 5251 60-64 More about the person