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Submitted on: 30 June 2021.
Revised on: 22 July 2021.
Accepted on: 26 August 2021.
___________________Cuadernos Geograficos---UNIV GRANADA
Submitted on: 25 December 2004.
Revised on: 13 February 2005.
Accepted on: 29 March 2005.
___________________Cuadernos Geograficos---UNIV GRANADA
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http://reply.papertrans.cn/1/68/6774/6774-15.png
Submitted on: 22 March 2008.
Revised on: 08 June 2008.
Accepted on: 31 July 2008.
___________________Cuadernos Geograficos---UNIV GRANADA
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http://reply.papertrans.cn/1/68/6774/6774-18.png
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Submitted on: 10 September 2002.
Revised on: 27 December 2002.
Accepted on: 07 January 2003.
___________________Cuadernos Geograficos---UNIV GRANADA