Here you will find open source content: Source codes and documentation for projects that are subject to an open license such as GPLv3 ( eBIS core format "Soil Protection 1.0"", e-PRTR QS web application and its XML exchange format, e-municipal wastewater web application, eBIS XML exchange format, XU operation reports, models and programs etc.). Some open contents were taken over by third parties and further developed, corrected or graphically processed (e.g. groundwater). If corresponding copyright notices are missing there, these have not been removed by us, but were missing from the outset (e.g. EIONET Data Specifications).