1. International Service for the Acquisition of Agri-biotech Applications (ISAAA), Brief 49-2014http://isaaa.org/resources/publications/briefs/49/pptslides/pdf/B49-Slides-English.pdf
2. Genetically Modified Food and Feed: Authorization in the EUwww.gmo-compass.org/eng/gmo/db/
3. Gesetz zur Regelung der Gentechnik (Gentechnikgesetz—GenTG)http://www.gesetze-im-internet.de/bundesrecht/gentg/gesamt.pdf
4. Description of GMO field trial projects, Status as of 2013http://apps2.bvl.bund.de/freisetzung/index.html
5. Occurrence of genetically modified oilseed rape seeds in the harvest of subsequent conventional oilseed rape over time