1. The precautionary principle in Germany-enabling government;Boehmer-Christiansen,1994
2. Decision processes for low probability events: policy implications;Camerer;Journal of Policy Analysis and Management,1989
3. The econometrics of financial markets;Campbell,1997
4. The latest data of exposure by the criticality incident in the JCO plant,2000
5. Commission of the European Union (2000). Communication from the Commission on the Precautionary Principle, COM (2000)-1.