1Ohlsson L. The turning of a screw: Social resource scarcity as a bottle-neck in adaptation to water scarcity[J]. Stockholm Water Front, 2000, (1): 10-11.
2Turton A R, Moodley S, Goldblatt M, et al. An analysis of the role of virtual water in Southern Africa in meeting water scarcity: an applied research and capacity building project[R]. Johannesburg: Group for Environmental Monitoring (GEM) and IUCN (NETCAB), 2000: 2-8.
3Wackernagel M, Onisto L, Linares et al. Ecological footprints of nations: How much nature do they use? [R]. Center for Sustainability Studies, Universidad Anahuac de Xalapa, Mexico, 1997.
4Chapagain A K, A Y Hoekstra. Virtual water trade: a quantification of virtual water flows between nations in relation to croptrade[A]. Virtual Water Trade: Proceedings of the International Expert Meeting on Virtual Water Trade[C]. IHE Delft, 2003: 1-118.
5Hoekstra A Y. Virtual water trade: an introduction[A]. Virtual Water Trade. Value of Water Research Report Series[C]. IHE Delft, 2003:13-23.
6Zimmer D, Renault D. Virtual water in food production and global trade: review of methodological issues and preliminary results[A]. Virtual Water Trade[C]. IHE Delft, 2003: 93-107.
7Oki T, Sato M. Virtual water trade to Japan and in the world[A]. Virtual Water Trade: Proceedings of the International Expert Meeting on Virtual Water Trade[C]. IHE Delft, 2003:221-238.
8Bennett A J. Environmental consequences of increasing production: some current perspectives[J]. Agric. Ecosys. Environ. 2000,(82), 89-95.
9Allan J A. Fortunately there are substitutes for water otherwise our hydro-political futures would be impossible[A]. Priorities for Water Resources Allocation and Management[C]. London: ODA, 1993:13-26.
10Allan J A. Overall perspectives on countries and regions[A]. Water in the Arab World: Perspectives and Prognoses[C]. Massachusetts: Harvard University Press, 1994,65-100.