1. European Employment Review (2007), “ECJ cases challenges Swedish Systems”, European Employment Review, No. 398.
2. Court of Justice of the European Communities (2007), “The court rules on whether collective action by a trade union attempts to force a foreign service provider to enter into negotiations on pay and sign a collective agreement in consistent with community law”, Court of Justice of the European Communities, Nos 98/07, Press Release.
3. Legislative Report (2008), “United Network International, Europa”, Legislative Report.