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Viviroli, Daniel; Dürr, Hans; Messerli, Bruno; Meybeck, Michel; Weingartner, Rolf (2007). Mountains of the world, - water towers for humanity: Typology, mapping, and global significance. Water resources research, 43(7), n/a-n/a. Washington, D.C.: American Geophysical Union 10.1029/2006WR005653
