1. Baaser , U. , Gnyp , M.L. , Hennig , S. , Hoffmeister , D. , Köhn N. , and Bareth , G. , 2006 . Online CampusGIS for the University of Cologne . Proc. AGIT'2006 , Heidelberg : Wichmann Verlag , 24 – 31 . In German .
2. Bambacus , M . Yang , C . Evans , J . Li , Z ., and Li , W . 2008 . Sharing earth science information to support the Global Earth Observing System of Systems (GEOSS) . In : Proceedings of IGARSS 2008 , 6–11 July 2008, Boston, CD-ROM, IEEE International Geoscience and Remote Sensing Symposium .
3. Bareth , G . 2005 . Uncertainty of regionalization with agro-ecosystem models and GIS , Proc. of the 4thInternational Symposium on Spatial Data Quality '05 , 212 – 220 .