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Submitted on: 15 January 2020.
Revised on: 25 February 2020.
Accepted on: 14 April 2020.
___________________Cuadernos Geograficos---UNIV GRANADA
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http://reply.papertrans.cn/1/68/6774/6774-34.png
Submitted on: 09 May 2012.
Revised on: 04 August 2012.
Accepted on: 09 September 2012.
___________________Cuadernos Geograficos---UNIV GRANADA
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