1. Anderson, G.E., 1980. Human exposure to atmospheric concentrations of selected chemicals. Science Applications International Corporation, Report to the US EPA under EPA contract 68-02-3066
2. Modeling of human exposure to airborne toxic materials;Anderson,1983
3. Bennett, B.G., 1981. Exposure Commitment Assessments of Environmental Pollutants (1) Exposure Commitment Concepts and Applications: Summary Exposure Assessments for Lead, Cadmium, and Arsenic, Technical Report, Chelsea Colleage, Monitoring and Assessment Research Centre, London, UK
4. Defining intake fraction;Bennett;Environmental Science and Technology,2002
5. Brinkhoff, T., 1999. Principle Cities and Agglomerations of the World, (http://citiesin.thecountry.com)