1. G.A. Ritter, Der Sozialstaat. Entstehung und Entwicklung im internationalen Vergleich [The Weifare State. Its rise and development in international perspective] (München: Oldenbourg, 1991, 2nd ed.), p. 198–199.
2. Council recommendation of 24 June 1992 on common criteria concerning sufficient resources and social assistance in social protection systems (92.441/EEC), in: Official Journal of the European Communities, L 245, August 26th, 1992, p. 46–48, esp. preamble no. 11.
3. L.A. Geelhoed, ‘1997: Een delta in Europa [1997: A delta in Europe]’, in: Economisch Statistische Berichten [Economic and Statistical Communications], (1997), January 1st, p. 4–8.
4. The role of the social partners and EC institutions;G Miller,1993
5. M. Albert, Capitalisme contre capitalisme, Paris 1991.