Differential Geometry and Geometric Structures is one of six research units which comprise the Institute of Discrete Mathematics and Geometry of the Vienna University of Technology. From this website, visitors can read about members and their research activities and download select publications (in German and English). They have also developed some software, which is in German, for use in geometry courses in Austrian schools. The Picture Gallery offers a collection of world Map Projections created by Hans Havlicek. Visitors can also view the picture gallery of map projections or the list of geometry related links.