Geo Projects (funded by DFG) Collaborative Research Centre 350 "Interactions between and Modelling of Continental Geo-Processes" subproject "Object-Oriented 3D/4D Geo-Information System" (GeoStore, GeoToolKit) DFG joint project "Interoperable Geoscientific Information systems" subproject "Open paleoecological information system (OPALIS)" subproject "Geological mapping with GIS on the basis of 3D models" DFG Graduate Research Centre "Landform" subproject "Object-Oriented Data Modelling of landform structures - Management of 3D/4D-data"