1. BMA (1995) Euro-Atlas. Soziale Sicherheit im Vergleich, Bonn: Bundesministerium für Arbeit und Sozialordnung.
2. Borre, Ole and Scarbrough, Elinor (eds) (1995) Beliefs in Government. Volume Three. The Scope of Government, Oxford: Oxford University Press.
3. CEPR (1993) Making Sense of Subsidiarity. How Much Centralization for Europe? London: Centre for Economic Policy Research.
4. Crouch, Colin (1993) Industrial Relations and European State Traditions, Oxford: Clarendon Press.
5. Esping-Andersen, Gøsta (1990) The Three Worlds of Welfare Capitalism, Cambridge: Polity Press.