A.K. Chapagain, A.Y. Hoekstra, H.H.G. Savenije and R. Gautam (1 november 2006). The water footprint of cotton consumption: An assessment of the impact of worldwide consumption of cotton products on the water resources in the cotton producing countries. Ecological Economics60 (1): 186–203. DOI: 10.1016/j.ecolecon.2005.11.027.
Waltham, Tony, Ihsan Sholji (2001). The demise of the Aral Sea – an environmental disaster. Geology Today17 (6): 218–228. DOI: 10.1046/j.0266-6979.2001.00319.x.
