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http://reply.papertrans.cn/1/86/8556/8556-32.png
Submitted on: 02 April 2002.
Revised on: 02 May 2002.
Accepted on: 03 June 2002.
___________________Environment and Planning A-Economy and Space
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Submitted on: 05 April 2010.
Revised on: 08 May 2010.
Accepted on: 04 July 2010.
___________________Environment and Planning A-Economy and Space
Submitted on: 08 April 2023.
Revised on: 23 May 2023.
Accepted on: 02 July 2023.
___________________Environment and Planning A-Economy and Space