Submitted on: 30 November 2003.
Revised on: 21 December 2003.
Accepted on: 14 January 2004.
___________________HABITAT INTERNATIONAL---PERGAMON-ELSEVIER SCIENCE LTD
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Submitted on: 20 February 2014.
Revised on: 13 May 2014.
Accepted on: 02 June 2014.
___________________HABITAT INTERNATIONAL---PERGAMON-ELSEVIER SCIENCE LTD
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Submitted on: 08 October 2002.
Revised on: 24 November 2002.
Accepted on: 05 January 2003.
___________________HABITAT INTERNATIONAL---PERGAMON-ELSEVIER SCIENCE LTD
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