1. Best Global Brands List | 2009. (n.d.). Retrieved December 14, 2009, from
http://www.interbrand.com/best_global_brands.aspx
2. Carlton, D. (1975). Dynamics of the arms race. London: C. Helm.
3. Frontline: the persuaders: interviews: clotaire rapaille |. (n.d.). Retrieved December 15, 2009, from
http://www.pbs.org/wgbh/pages/frontline/shows/persuaders/interviews/rapaille.html
4. Graham, J. (1999, July 26). Escaping the Cult of Click-Through – ClickZ. Retrieved December 16, 2009, from
http://www.clickz.com/816321