EUR-Lex, access to the EU legal system
http://eur-lex.europa.eu/cs/index.htm
Representation of the European Commission of the Czech Republic
http://www.evropska-unie.cz/cz
Portal of the European Union
http://europa.eu/index_cs.htm
Europe, European Commission, Environment
http://ec.europa.eu/environment/index_cs.htm
Court of justice of the European Community
http://curia.europa.eu/cs/transitpage.htm
An internet version of Selection of documents of the EU is available on pages of the European Matters Committee of the House of Commons of the Parliament of the Czech Republic
http://www.psp.cz/home/vybory/vez/
and Parliamentary Institute
http://www.psp.cz/kps/pi/doc_eu.htm