1. Allen, D.T., Shonnard, D.R., 2009. Governments unite to step-up reduction on global DDT reliance and add nine new chemicals under international treaty, Press release. http://chm.pops.int/Convention/Pressrelease/COP4Geneva8May2009/tabid/542/language/en-US/Default.aspx.
2. Allen, D.T., Shonnard, D.R., 2019a. Emerging Contaminants and Federal Facility Contaminants of Concern, United States Environmental Protection Agency (USEPA). https://www.epa.gov/fedfac/emerging-contaminants-and-federal-facility-contaminants-concern.
3. Allen, D.T., Shonnard, D.R., 2019b. The new POPs under the Stockholm Convention. http://chm.pops.int/TheConvention/ThePOPs/TheNewPOPs/tabid/2511/Default.aspx.
4. Summary of the meetings of the conferences of the parties to the basel, rotterdam and stockholm conventions;Allen;IISD Reporting Services,2019
5. Allen, D.T., Shonnard, D.R., 2020. CompTox Chemicals Dashboard, United States Environmental Protection Agency (USEPA). https://comptox.epa.gov/dashboard.