1. Barraqué B., 1999, Environmental, economic and ethical sustainability of water service industry, in Correia F.N., Water 21: towards a sustainable European water policy, Report to the European Commission, Dg12
2. Barraqué B., 2000a, Les demandes en eau en Catalogne: perspective europeene sur le projet d'aqueduc du Rhone a Barcelone, Report to the French Ministry of the Environment, Paris
3. Barraqué B., 2000b, Privatising the water sector: the French experience, in Holwarth F., Kraemer A., Environmental consequences of privatizing the water sector in Germany, proceedings of the Conference held in Berlin, November 2000, Berlin, Ecologic.
4. Baumol W.J., Oates W.E., 1988, The theory of environmental policy, NY, Cambridge University Press
5. Briscoe J., 1996, Water as an economic good: the idea and what it means in practice, International Commission on Irrigation and Drainage, Cairo