1. EUROPA - the European Union On-Line, Downloaded (December 12, 2002),
http://europa.eu.int/information_society/topics/citizens/accessibility/dfa/index_en.htm
2. EUROPA - the European Union On-Line. eEurope2002 Action Plan - An information society for all & eEurope2005 Action Plan - An information society for all,
http://europa.eu.int/information_society/eeurope/action_plan/index_en.htm
3. http://www.w3.org/TR/1999/WAI-WEBCONTENT-19990505/