1 ICID. 1999. 17th Congress on Irrigation and Drainage, Granada, Spain, 1999: Water for Agriculture in the Next Millennium - Transactions, Vol.1C, Q.48, Poster Session: Irrigation under conditions of water scarcity: Q.48.1: Management of irrigation systems and strategies to optimize the use of irrigation water. New Delhi, India: ICID. xii, 329p.
2 Lopez-Gunn, E. 2003. The role of collective action in water governance: A comparative study of groundwater user associations in La Mancha Aquifers in Spain. Water International, 28(3):367-378.