http://europa.eu/rapid/press-release_IP-08-1340_cs.htm

http://ec.europa.eu/education/languages/pdf/com/2008_0566_cs.pdf

http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:C:2009:077:0109:0114:CS:PDF

http://aplikace.msmt.cz/htm/doporuc.htm

http://europa.eu/rapid/press-release_IP-12-679_cs.htm

http://www.elingvo.eu/