http://reply.papertrans.cn/4/306/30554/30554-31.png
Submitted on: 05 January 1999.
Revised on: 24 January 1999.
Accepted on: 29 January 1999.
Water Economics and Policy
http://reply.papertrans.cn/4/306/30554/30554-33.png
Submitted on: 01 July 2002.
Revised on: 12 August 2002.
Accepted on: 01 September 2002.
Water Economics and Policy---WORLD SCIENTIFIC PUBL CO PTE LTD
http://reply.papertrans.cn/4/306/30554/30554-35.png
http://reply.papertrans.cn/4/306/30554/30554-36.png