1. Virtual Water Flows in North America, Holl-Aubum: Sectorof Agricultural Economics and Rural Sociology;Affuso,2010
2. Strategic importance of green water in international crop trade;Aldaya;Ecol. Econ.,2010
3. Fortunately There Are Substitutes for Water Otherwise Our Hydro-Political Futures Would Be Impossible, Priorities for Water Resources Allocation and Management;Allan,1993
4. Water Stress and Global Mitigation: Water Food and Trade;Allan,1999
5. Systemic input-output computation of green and blue virtual water ‘flows’ with an illustration for the Mediterranean region;Antonelli;Water Resour. Manag.,2012