Siehe dazu auch: Graham Brookes und Peter Barfoot: Global income and production effects of GM crops 1996-2012, GM Crops and Food: Biotechnology in Agriculture and the Food Chain, 5.1, 1-11, http://dx.doi.org/10.4161/gmcr.28098.
Dies.: Key environmental impacts of global GM crop use 1996-2012) GM Crops and Food: Biotechnology, in: Agriculture and the Food Chain, 5.2, 1-12 April/May/June http://www.landesbioscience.com/journals/gmcrops/.