Then, C. & Potthof, C., 2009, Risk Reloaded – risk analysis of genetically engineered plants within the European Union, Testbiotech report,
http://www.testbiotech.de/sites/default/files/risk-reloaded_engl_sc_0_0.pdf or
http://www.testbiotech.de/sites/default/files/risk-reloaded_deutsch%20260110.pdf (german version)

Then, C., 2010 Testbiotech opinion on EFSA’s draft guidance on the environmental risk assessment of genetically modified plants, Testbiotech report,
http://www.testbiotech.de/sites/default/files/Opinion%20Testbiotech%20EFSA%20GMO%20draft%20guidance_2_1.pdf

TESTBIOTECH Background, 9-2010: Ten crucial elements in the environmental risk assessment of genetically engineered plants,
http://www.testbiotech.de/sites/default/files/Ten_crucial_elements_in_%20ERA_Testbiotech_0.pdf

TESTBIOTECH Background 21-12-2010: Testbiotech analysis of EFSA Guidance on the environmental risk assessment of genetically modified plants; EFSA ́s standards for environmental risk assessment not sufficient,
http://www.efsa.europa.eu/en/scdocs/doc/1879.pdf

TESTBIOTECH Background 15-1-2011: Testbiotech comment on Selection of Comparators for risk assessment,
http://www.testbiotech.de/sites/default/files/Testbiotech%20comment_Comparator.pdf

TESTBIOTECH Comment on EFSA´s draft Guidance for risk assessment of GMMO
http://www.testbiotech.org/node/447

Input to the EU Commission´s Consultation on Environmental Risk Assessment of Genetically Engineered Plants.
http://www.testbiotech.org/node/462/