1. Arrojo P. (1999), The Impact of Water Prices on Agricultural Water in Spain, paper presented at the Conference on Pricing Water -Economics, Environment and Society, Istituto da Agua, Lisbon, September 7’9.
2. Associated Press (2000), Cyanide Spill in Europe Turning into a Disaster, Star Tribune, Minneapolis, MN, Feb. 13: A19.
3. Baker M.N. (1899), Water-Works, in: Bemis, E.W., Municipal Monopolies, Thomas Crowell & Co, New York, NY.
4. Barraqué B. (1998), Groundwater Management in Europe, in: Hilding-Rydevik-I.Johansson, How to Cope with Degrading Groundwater Quality in Europe, Swedish Council for Planning and Coordination of Research, Stockolm, pp.74–101.
5. Beecher J. - Richard G.D. - Stanford J.P. (1995), Regulatory Implications of Water and Wastewater Utility Privatization, National Regulatory Research Institute, Columbus OH.