By Venter A   Plessis S du   Heerden PDR van   Strauss AJ   Bezuidenhout J   in African Journal of Aquatic Science

ISSN:1727-9364|34|2|159-168

Taylor & Francis Ltd‎(2009)‎

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By Strauss AJ   Krüger GHJ   van Heerden PDR   Pienaar JJ   Weissflog L   in South African Journal of Botany

ISSN:0254-6299|70|5|751-759

NISC Pty Ltd‎(2004)‎

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