1. Agrocare (2002): Agro-care Chemical Industry Group. Imazethapyr. (online). Available at: http://www.agrocare.com.cn/Products/Imazethapyr.htm (accessed 14 May 2007)
2. Altieri MA, Pengue WA (2006): La soja transgenica en America Latina. Una maquinaria de hambre, deforestacion y devastacion socioecologica. Biodiversidad. 47, 14–19, Montevideo (in Spanish)
3. Anonymous (2006a): Salta: un biotipo de Sorgo de Alepo se ‘quiere escapar’. Available at: http://www.todoagro.com.ar/todoagro2/nota.asp?id=359 . (accessed 14 May 2007) (in Spanish)
4. Anonymous (2006b): Safety (MSDS) data for paraquat. Available at: http://physchem.ox.ac.uk/MSDS/PA/paraquat.html (Accessed 23 June 2006)
5. Anonymous (2005): Bekæmpelsesmiddelstatistik 2004. Orientering fra Miljøstyrelsen Nr. 6. Danish Environmental Protection Agency. 52 pp (online). Available at: http://www.mst.dk/Udgivelser/Publikationer/2005/09/87-7614-790-8.htm (accessed 14 May 2007)