1. EPA. Nanomaterial Case Studies: Nanoscale Titanium Dioxide in Water Treatment and in Topical Sunscreen. http://cfpub.epa.gov/ncea/cfm/recordisplay.cfm?deid=230972.
2. EPA. Nanomaterial Case Study: Nanoscale Silver in Disinfectant Spray. http://cfpub.epa.gov/ncea/cfm/recordisplay.cfm?deid=241665.
3. EPA. Nanomaterial Case Study: A Comparison of Multiwalled Carbon Nanotube and Decabromodiphenyl Ether Flame-Retardant Coatings Applied to Upholstery Textiles (draft) 2012. http://cfpub.epa.gov/ncea/cfm/recordisplay.cfm?deid=244011.
4. EEA. Late Lessons from Early Warnings: The Precautionary Principle 1896 2000 2002. http://www.eea.europa.eu/publications/environmental_issue_report_2001_22.
5. A ‘gift of God’? The public health controversy over leaded gasoline during the 1920s.;Rosner;Am J Public Health,1985