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ISSN:1366-5901|23|1|71-89

Taylor & Francis Ltd‎(2002)‎

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By du Plessis W.P.   in Journal of Arid Environments

ISSN:0140-1963|48|3|397-417

Academic Press‎(2001)‎

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By du Plessis W.P.   in Journal of Arid Environments

ISSN:0140-1963|42|4|235-260

Academic Press‎(1999)‎

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