1. Fortunately there are substitutes for water otherwise our hydro-political futures would be impossible;Allen,1993
2. Virtual water trade: an introduction;Hoekstra,2003
3. China's corn interregional trade and regional soil and water resources balance;Lizhen;J. Resour. Sci.,2008
4. System dynamics analysis of water supply and demand in the North China Plain;Qin;Water Policy,2012
5. Virtual water flows and trade liberalization;Ramirez-Vallejo;Water Sci. Technol.,2004