By de Villiers A.J.   van Rooyen M.W.   Theron G.K.   in Journal of Arid Environments

ISSN:0140-1963|49|4|809-821

Academic Press‎(2001)‎

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By Steyn H.M.   van Rooyen N.   van Rooyen M.W.   Theron G.K.   in Journal of Arid Environments

ISSN:0140-1963|32|4|407-420

Academic Press‎(1996)‎

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By Steyn H.M.   van Rooyen N.   van Rooyen M.W.   Theron G.K.   in Journal of Arid Environments

ISSN:0140-1963|33|1|49-62

Academic Press‎(1996)‎

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By van Rooyen M. W.   van Rooyen N.   Stoffberg G. H.   in Forestry

ISSN:1464-3626|86|2|211-223

Oxford University Press‎(2013)‎

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By Tarr J. A.   Gaugris J. Y.   van Rooyen M. W.   Bothma J. du P.   in The International Journal of Sustainable Development and World Ecology

ISSN:1350-4509|13|5|435-443

Taylor & Francis Ltd‎(2006)‎

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