Online-Processing of 21⁄2 - Dimensional Groundwater Maps. - Uwe Rüppel; Thomas Gutzke; Michael Petersen 003; Gerrit Seewald (EnviroInfo, 2003)

Geographical Framework for the Network-Based Management of Duds. - Uwe Rüppel; Gerrit Seewald; Michael Petersen 003 (EnviroInfo, 2003)

An internet-based spatial Decision Support System for Environmental Data. - Uwe Rüppel; Thomas Gutzke; Michael Petersen 003; Gerrit Seewald (EnviroInfo (1), 2004)

Internet-Based Provision of Regional Geographical Information Using Webservice Technologies. - Gerrit Seewald; Michael Petersen 003 (EnviroInfo (1), 2004)

Publishing and Distribution of Environmental Information in Civil Engineering Based on Spatial Metadata Description. - Gerrit Seewald; Michael Petersen 003; Thomas Gutzke (EnviroInfo, 2005)