1. See, e.g., most recently ECJ, Case C-151/07 Theologos-Grigorios Chatzithanasis v. Ypourgos Ygeias kai Koinonikis Allilengyis and Organismos Epangelmatikis Ekpaidefsis kai Katartisis (OEEK) [2008] ECR NYP; ECJ, Case C-158/07 Jacqueline Förster v. Hoofddirectie van de Informatie Beheer Groep [2008] ECR NYP; ECJ, Case C-127/08 Blaise Baheten Metock and Others v. Minister for Justice, Equality and Law Reform [2008] ECR I-6241.
2. See Arts. 12, 17, 18, 39 EC; Directive 2004/38 on the right of citizens of the Union and their families to move and reside freely within the territory of the Member States [2004] OJ L 158/77 of 30 April 2004.
3. Art. 19 EC; Art. 39(4) EC; ECJ, Case 149/79 Commission v. Belgium [1980] ECR 3881; O’Keeffe, ‘Judicial interpretation of the public service exception to the free movement of workers’, in D. Curtin and D. O’Keeffe, eds., Constitutional Adjudication in European Community and National Law (Dublin, Butterworths 1992) p. 89.
4. G. Davies, Nationality Discrimination in the European Internal Market (The Hague, Kluwer Law International 2003) pp. 43–44.
5. ECJ, Case C-237/94 John O’Flynn v. Adjudication Officer [1996] ECR I-2617.