1. Safety, Risk and the Precautionary Principle: Rethinking Precautionary Approaches to the Regulation of Transgenic Plants
2. Evans E.A. (1999)Understanding the WTO Sanitary and Phytosanitary Agreement, IFAS extension, FE 492.
3. Elements of Precaution: Recommendations for the Regulation of Food Biotechnology in Canada, An Expert Panel Report on the Future of Food Biotechnology prepared by The Royal Society of Canada at the request of Health Canada, Canadian Food Inspection Agency and Environment Canada, The Royal Society of Canada, 2001.
4. Frederick R.J. (1998)International Biosafety Regulations: Benefits and costs, Agricultural Biotechnology and International Development, 213–228.