1. Allen RG, Pereira LS, Raes D, Smith M (1998) Crop evapotranspiration: guidelines for computing crop water requirements. FAO drainage and irrigation Paper 56. Food and Agriculture Organization, Rome
2. Baloch MA, Ames DP, Tanik A (2015) Hydrologic impacts of climate and land-use change on Namnam Stream in Koycegiz Watershed, Turkey. Int J Environ Sci Technol 12(5):1481–1494
3. Boulay AM (2012) Water footprinting: where are we now? WATER in LCA: which assessment techniques are emerging or ready? including lots of challenging aspects. 50th LCA Discussion Forum, ETH Zurich, Switzerland
4. Boulay AM, Bare J, Benini L, Berger M, Klemmayer I, Lathuilliere M, Loubet P, Manzardo A, Margni M, Nunez M, Ridoutt B, Worbe S, Pfister S (2014) Building consensus on a generic water scarcity indicator for LCA-based water footprint: preliminary results from WULCA. 9th international conference LCA of Food San Francisco, USA, 8–10 Oct
5. Brown A, Matlock MD (2011) A review of water scarcity indices and methodologies [White paper]. The sustainability consortium.
http://www.sustainabilityconsortium.org/wp-content/themes/sustainability/assets/pdf/whitepapers/2011_Brown_Matlock_Water-Availability-Assessment-Indices-and-Methodologies-Lit-Review.pdf
. Accessed 15 May 2014