1. Access Board. Electronic and Information Technology Accessibility Standards (2000) (Retrieved September 14, 2004) from:
http://www.access-board.gov/sec508/508standards.htm
2. European Commission. eEurope 2005: An information society for all (2002) (Retrieved September 4, 2004) from:
http://europa.eu.int/information_society/eeurope/2005/index_en.htm
3. GA-SIG. White Paper: Accessibility in Games: Motivations and Approaches (2004) (Retrieved September 4, 2004) from:
http://www.igda.org/accessibility/IGDA_Accessibility_WhitePaper.pdf
4. W3C. W3C-WAI resources: Guidelines (2004) (Retrieved September 14, 2004) from:
http://www.w3.org/WAI/Resources/#gl
5. ISO. ISO/TS 16071:2003: Ergonomics of human-system interaction – Guidance on accessibility for human-computer interfaces. International Standards Organisation, Geneva, Switzerland (2003)