1. Barber NW (2005) The limited modesty of subsidiarity. ELJ 11:308–325
2. Barnard C (2008) Unravelling the services directive. CMLRev 45:323–394
3. Beukel E (1994) Reconstructing integration theory: the case of educational theory in the EC. Cooperation Confl: Nordic Stud Int Politics 29:33–54
4. Brinkhorst LJ (1991) Subsidiarity and the European environmental policy. In: Delors J (ed) Subsidiarity: the challenge of change. European Institute of Public Administration, Maastricht
5. Buchan J (2007) Health worker migration in Europe: assessing the policy options. Eurohealth 13