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 van Essen L.D.   Bothma J.duP.   van Rooyen N.   Trollope W.S.W   in African Journal of Range and Forage Science

ISSN:1727-9380|17|1-3|115-118

Taylor & Francis Ltd‎(2000)‎

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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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