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3. FAO (Food and Agricultural Organizations) 2014 Walking the nexus talk: Assessing the water-energy-food nexus in the context of the sustainable energy for all initiative http://www.fao.org/3/a-i3959e.pdf
4. IRENA (The International Renewable Energy Agency) 2015 Renewable energy and the water, energy and food nexus http://www.irena.org/documentdownloads/publications/irena_water_energy_food_nexus_2015.pdf