<ul><li><a href=http://eur-lex.europa.eu/legal-content/EN/TXT/?uri=celex%3A32006L0123 target=_blank>Directive 2006/123/EC on services in the internal market(Directive 2006/123/EC of the European Parliament and of the Council of 12 December 2006 on services in the internal market, Article 23)</a></li></ul>