Dynamic and Interactive Presentation of Environmental Information. - Uwe Rammert; Friedhelm Hosenfeld (EnviroInfo, 2003)

Nature-Pilot Schleswig-Holstein - Interactive Balloon Flight Presenting Nature Highlights. - Friedhelm Hosenfeld; Andreas Rinker; Ernst-Walter Reiche; Dirk Bornhöft; Gudrun Schultz (EnviroInfo, 2005)

Virtual Centre of Competence - Information and Management Platform in the Project "Zukunft Küste - Coastal Futures". - Friedhelm Hosenfeld; Benjamin Burkhard; Wilhelm Windhorst (EnviroInfo, 2006)

Automatic Transformation and Harmonizing of Soil Data via Digital Translation Keys. - Friedhelm Hosenfeld; Dieter Kuhn (EnviroInfo (1), 2007)

Database of Measures Supporting Creation of Management Plan and Programme of Measures for Implementing - Water Framework Directive. - Friedhelm Hosenfeld; Dirk Behrens; Marcus Lempert; Andreas Rinker; Michael Trepel; Angelika Steingräber (EnviroInfo, 2008)

Waste Management Web Portals in Schleswig-Holstein - Development and Operation. - Friedhelm Hosenfeld; Wolfgang Thiel; Johannes Bublitz (EnviroInfo (1), 2009)

European Forest Monitoring Information System Data management for EU project FutMon. - Oliver Granke; Friedhelm Hosenfeld; Andreas Rinker; Klaus Schnack; Volker Mues (EnviroInfo, 2010)

Assessment Database Supporting Implementation of Water Framework Directive in Schleswig-Holstein. - Friedhelm Hosenfeld; Johanna Lietz; Michael Trepel (EnviroInfo, 2011)

Development of a Database Supporting the Management of Nature Conservation Measures in Schleswig-Holstein. - Friedhelm Hosenfeld; Jörn Kleinbub; Kay Krüger; Dominik Kumer; Kathleen Langner; Andreas Rinker (EnviroInfo, 2012)

Wildlife-Survey Schleswig-Holstein. - Heiko Schmüser; Friedhelm Hosenfeld; Andreas Rinker (EnviroInfo, 2013)

Mapping Service Environmental Noise Schleswig-Holstein. - Friedhelm Hosenfeld; Ludger Gliesmann; Andreas Rinker (EnviroInfo, 2014)

Energy Atlas Schleswig-Holstein. - Friedhelm Hosenfeld; Malte Albrecht (EnviroInfo/ICT4S (2), 2015)

Waterbody and Nutrient Information System Schleswig-Holstein. - Friedhelm Hosenfeld; Michael Trepel; Johannes Tiffert (EnviroInfo (2), 2016)

Wasserkörper- und Nährstoffinformationssystem Schleswig-Holstein. - Friedhelm Hosenfeld; Johannes Tiffert; Michael Trepel (UIS, 2016)

Beratungsdatenbank Geologie und Boden in Schleswig-Holstein (Consulting Database Geology and Soil of Schleswig-Holstein). - Friedhelm Hosenfeld; Karen Bäzner; Meike Nitschke; Bernd König (UIS, 2017)

Improving Data Quality of Programme of Measures for the Water Framework Directive in Saxony. - Friedhelm Hosenfeld; Roland Dimmer; Christoph Mattes (EnviroInfo, 2022)

Management of climate protection measures in peatland areas in Schleswig-Holstein. - Friedhelm Hosenfeld; Johannes Tiffert; Matthias Jugelt; Angelika Bretschneider; Yvette Krummheuer (EnviroInfo, 2023)

Dashboard-based waste disposal facility register in Saxony ABENSA. - Friedhelm Hosenfeld; Johannes Tiffert; Axel Zentner; Ines Thamke; Johanna Guth (EnviroInfo, 2024)