1. Political Declaration of the II World Summit of Cities and Local Authorities on the Information Society Bilbao, Spain November 11 (2005), URL
http://www.it4all-bilbao.org/declaracion
2. “Tunis Commitment”. World Summit on the Information Society. Document WSIS-05/TUNIS/DOC/7-E. Tunis November 18 (2005), URL
http://www.itu.int/wsis/docs2/tunis/off/7.html
3. Chisholm, W., Vanderheiden, G., Jacobs, I.: Web Content Accessibility Guidelines 1.0. World Wide Web Consortium Recommendation (1999), URL
http://www.w3.org/TR/WCAG10/
4. Education and Outreach Working Group: Evaluating Web Sites for Accessibility: Overview. World Wide Web Consortium (2005), URL
http://www.w3.org/WAI/eval
5. Slatin, J.M., Rush, S.: Maximum Accessibility: Making Your Web Site More Usable for Everyone. Addison Wesley Professional, Boston (2003)